Describe the error in the work shown. 3 sqrt x^3(y^12)/4^3 = 3sqrtx^3(y^12)/3sqrt4^3 = 3 sqrt x^3(y^3)^4/3sqrt4^3 = xy^3/4

5/12, or 5: 12

step-by-step explanation:

30005

yes ok                                            

first one because it can't have a fraction in it

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).