Number decreased by 8 is equal to 20

Given right triangle xyz, which correctly describes the locations of the sides in relation to

For how answer my question this will be the last question can you answer in math subject

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