Back again with geometry that i’m not good with, ?

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

Guys i really need or i have to stay late up night

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?