The rectangle below has an area of 12y^512y 5 12, y, start superscript, 5, end superscript square meters and a width of 3y^33y 3 3, y, cubed meters. What is the length of the rectangle?

18.8cm hope i at all

step-by-step explanation:

the answer is  

a.

4,624π mm2

step-by-step explanation:

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).