What is the solution to this equation? 3x-9 = 12
O A. x = 1
B. x = 7
O c. x = 9
O D. x = 63

answer:

a=9

step-by-step explanation: lmk if you need a 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).

1. supplementary angles

2. acd and bcd

step-by-step explanation: