What is the coefficient in the expression 5 + 9y

I'm terrible at math any here is appreciated.

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t