Find the value of x will give you five stars pls answer ASAP

A - x=13

Step-by-step explanation:

Pythagorean theorem

base is 5 (10/2)

height is 12

5^2 + 12^2 = c^2

25 + 144 = 169

c = 13

i think it would be 42cm

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).