1. Kristen is deep-sea diving with two friends. Joe is exploring a coral reef 8 meters in front of Kristen, and Marta is floating on the surface directly above Kristen. If Marta and Joe are 17 meters apart, how far
apart are Kristen and Marta?

it is 10.6 according to my calculations

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

angle efh= angle egh