Jess recently started a business producing cosmetic products made from natural ingredients. she wants to advertise her products by distributing bags of samples in her neighborhood. she calculated that it takes a person 2 minutes to prepare one bag. how many hours will it take to prepare 1200 bags of samples if jess and 7 of her friends work simultaneously?

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).

your answer is 125y5