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b. Josh deposits $100 each month into an account that pays 4.5% annual interest compounded monthly. He wants to continue this until the balance is $5000. How long must he continue this? 7. Brian is purchasing a new car prices at $56,000. He has to make a down payment of 9%. How much is his down payment? How much would the loan be for to pay off the car? 8. Sarah took out a loan to buy a boat that costs $30,000. She paid $6,000 as a down payment for the loan, and then makes payments of $480 each month for 5 years to pay off the loan with interest. a. How much total money did Sarah pay to purchase the boat? b. How much interest did Sarah pay on the loan