Will upvote! need !
find the balance in the account.
$700 principal earning 5%, compounded monthly, after 9 years
a: $79,380.00
b: $1,085.93
c: $1,096.79
d: $16,088.19

m=-16

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).

$450 i think. hope this ☺