Rod has to read a book which has p pages. He plans to read r pages each day for d days. Write an equation for the number of pages left, b, in the book, after d days.

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