Please help, This is confusing. I'll mark brainiest

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

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

What is the sum of these mixed numbers 4 2/3+ 3 1/9