For this question it's best to draw a picture.
Home----(2 blocks)----stoplight, 8:20am ----(x distance)---- town library, 8:24-----(3 blocks)---- school
so you know 3 blocks is halfway. The total distance must be 6 blocks.
2 blocks from home is the stoplight, x distance must be one block since that's the remainder of half the distance.
He walked … Read more