Interest rates on loans are determined by
a. your credit profile
b. credit bureaus
c. whatever the lender wants to charge
d. the amount owed at various times

A but read the answers carefully.

Step-by-step explanation:

The question is "Who are you getting the loan from?"

If it is  a payday loan company, it can vary quite a bit and they usually can justify their usury.

If it is from a bank, they have a rigid set of standards. If you can jump through the hoops, the rate will be fixed, but only if you qualify.

Credit bureaus keep track of how well you pay your debts. A good score will influence low rate lenders, but it is not the only factor.

D would seem to be correct and there is such a thing as a sliding interest rate, but I don't think that's the answer.

It's not C. And it's not D. So your choice is between A and B. They are so close.

I'm going to choose A, but do not be surprised if it is B

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.