X + 8 = 10 . Solve for x

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

How do i do this activity, is appreciated

The graph shows the distance kerri drives on a trip. what is kerri's speed?