Sam's T-shirt business uses the demand function P =-Q + 26 and the supply function P = Q-10. Acceding to these functions, what will the
equilibrium point (P, Q) be for Sam's T-shirt business?

A: (8,18)
B: (18,8)
C: (26,10)
D: (10,26)

8/k

step-by-step explanation:

10

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).