What is the value of 9p5?
a. 45
b. 126
c. 15,120
d . 59,049
a cooking club has 12 members. how many ways can they select a president and vice president from among the members?
a. 1320
b. 220
c. 132
d. 66

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).