1. A 20 ounce box of cereal costs $3.20. A 12 ounce box of cereal costs $1.80. Find the unit rate per ounce for each and determine the better buy. Justify your response.

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it

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).