Answer : The distance from the bus stop to his home is 6 blocks
The graph of the given information is attached below
The distance from his home to the park =10 blocks
The distance from his home to his friend's house = 15 blocks
The distance from the grocery store to his home = 9 blocks
By Side-Angle-Side Similarity , the sides are in proportions
So we make a proportion using the similar triangles


15x = 90 ( Divide by 15 on both sides)
x= 6 blocks
The distance from the bus stop to his home is 6 blocks