Really need on #91 which option is it a, b,c, or d ? why?

Use the foil method to find (z− 5/3 )(z− 2/3 )

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

Three times the sum of a number and seven is negative thirty-six. what is the number?