Hector took out a small loan of $900 for 18 months or 1 1/2 years. The simple interest rate on the loan was 10.5%. How much will he pay in interest on the loan? (Need a step by step)

step-by-step explanation:

bob the banana

i am not sure :

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).