Shane is walking toward two flagpoles as shown in the diagram below. What is the approximate distance between the flagpoles? Round your answer to the nearest whole number. 6 ft 6 ft 7 ft 7 ft 15 ft 15 ft 20 ft

17.08

correct me if i am wrong.

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).