diff --git a/solution.md b/solution.md
index e69de29..48086ad 100644
--- a/solution.md
+++ b/solution.md
@@ -0,0 +1,66 @@
+''' xml
+<!-- signup_fragment.xml -->
+
+<ImageView
+android:contentDescription="Blazon Logo"/>
+
+<ImageButton
+           android:layout_width="0dp"
+           android:layout_height="match_parent"
+           android:layout_weight="1"
+           android:background="@android:color/transparent"
+           android:id="@+id/facebook_button"
+           android:src="@drawable/facebook"
+           android:contentDescription="Sign up with your Facebook account."/>
+
+       <ImageButton
+           android:layout_width="0dp"
+           android:layout_height="match_parent"
+           android:layout_weight="1"
+           android:layout_marginLeft="10dp"
+           android:layout_marginRight="10dp"
+           android:id="@+id/twitter_button"
+           android:src="@drawable/twitter"
+           android:background="@android:color/transparent"
+           android:contentDescription="Sign up with your Twitter account."/>
+
+       <ImageButton
+           android:id="@+id/googleplus_button"
+           android:layout_width="0dp"
+           android:layout_height="match_parent"
+           android:layout_weight="1"
+           android:src="@drawable/google"
+           android:background="@android:color/transparent"
+           android:contentDescription="Sign up with your Google Plus account."/>
+
+<!-- End of signup_fragment.xml -->
+
+
+<!-- In pie_chart_fragment.xml -->
+<net.steamcrafted.materialiconlib.MaterialIconView
+            android:id="@+id/next"
+            android:layout_width="50dp"
+            android:layout_height="50dp"
+            android:layout_alignParentEnd="true"
+            android:layout_centerHorizontal="true"
+            android:layout_centerVertical="true"
+            android:layout_marginEnd="15dp"
+            app:materialIcon="arrow_right_bold"
+            app:materialIconColor="#ffffff"
+            android:contentDescription="Go to bar chart"/>
+<!-- End pie_chart_fragment.xml -->
+
+
+
+<!-- In bar_chart_fragment.xml -->
+<net.steamcrafted.materialiconlib.MaterialIconView
+    android:id="@+id/back"
+    android:layout_width="50dp"
+    android:layout_height="50dp"
+    android:layout_marginStart="10dp"
+    app:materialIcon="arrow_left_bold"
+    app:materialIconColor="#ffffff"
+    android:contentDescription="Go to pie chart"/>
+<!-- End bar_chart_fragment.xml -->
+
+'''
diff --git a/starter-code/app/src/main/res/layout/bar_chart_fragment.xml b/starter-code/app/src/main/res/layout/bar_chart_fragment.xml
index 079b3be..a0e7b37 100644
--- a/starter-code/app/src/main/res/layout/bar_chart_fragment.xml
+++ b/starter-code/app/src/main/res/layout/bar_chart_fragment.xml
@@ -58,7 +58,8 @@
             android:layout_marginStart="10dp"
             app:materialIcon="arrow_left_bold"
             app:materialIconColor="#ffffff"
-            />
+            android:contentDescription="Go to pie chart"/>
+
 
         <TextView
             android:id="@+id/instances"
diff --git a/starter-code/app/src/main/res/layout/pie_chart_fragment.xml b/starter-code/app/src/main/res/layout/pie_chart_fragment.xml
index ef9ab5d..bcdc859 100644
--- a/starter-code/app/src/main/res/layout/pie_chart_fragment.xml
+++ b/starter-code/app/src/main/res/layout/pie_chart_fragment.xml
@@ -56,7 +56,8 @@
             android:layout_marginTop="17dp"
             android:text="@string/total_instances"
             android:textColor="@color/text_white"
-            android:textSize="18sp" />
+            android:textSize="18sp"
+            />
 
         <net.steamcrafted.materialiconlib.MaterialIconView
             android:id="@+id/next"
@@ -68,7 +69,8 @@
             android:layout_marginEnd="15dp"
             app:materialIcon="arrow_right_bold"
             app:materialIconColor="#ffffff"
-            />
+            android:contentDescription="Go to bar chart"/>
+
 
     </RelativeLayout>
 
diff --git a/starter-code/app/src/main/res/layout/signup_fragment.xml b/starter-code/app/src/main/res/layout/signup_fragment.xml
index 4e6a3ec..dd8e63a 100644
--- a/starter-code/app/src/main/res/layout/signup_fragment.xml
+++ b/starter-code/app/src/main/res/layout/signup_fragment.xml
@@ -20,7 +20,7 @@
             android:layout_gravity="center"
             android:layout_marginBottom="25dp"
             android:src="@drawable/logo_large"
-            android:contentDescription="@string/app_logo"/>
+            android:contentDescription="Blazon Logo"/>
 
         <TextView
             android:id="@+id/blazon"
@@ -70,7 +70,7 @@
             android:background="@android:color/transparent"
             android:id="@+id/facebook_button"
             android:src="@drawable/facebook"
-            />
+            android:contentDescription="Sign up with your Facebook account."/>
 
         <ImageButton
             android:layout_width="0dp"
@@ -81,7 +81,7 @@
             android:id="@+id/twitter_button"
             android:src="@drawable/twitter"
             android:background="@android:color/transparent"
-            />
+            android:contentDescription="Sign up with your Twitter account."/>
 
         <ImageButton
             android:id="@+id/googleplus_button"
@@ -90,7 +90,7 @@
             android:layout_weight="1"
             android:src="@drawable/google"
             android:background="@android:color/transparent"
-            />
+            android:contentDescription="Sign up with your Google Plus account."/>
 
     </LinearLayout>
 </LinearLayout>