PLS HELP NOW IM DOING A TEST

n=15

Step-by-step explanation:

because you multiply the exponents -4 and -5 which equals 20 because youre multiplying two negative numbers which equals a positive. then you add the exponent -5 and 20 which equals 15. hope this helped!

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).