Prof Josh plans to purchase a $1,690 silver-plated, diamond encrusted TI-84+CE in 4 years. He has calculated that he can save up for this purchase by making semiannual deposits of $200 into an account paying interest compounded semiannually. What interest rate does his calculation assume?

The interest rate is % (round to two decimal places.)

A small business owner is using a line of credit to get their business started. They take out loans of $9,500 at the beginning of each quarter for 13 quarters. At the end of the 13 quarters, they are to begin repaying the loan.

As business is still slow, the business owner negotiates that they will begin repayment of the loan 3 quarters after they were originally to begin repayment. While no payments are required during these 3 quarters, interest is charged on the balance.

If the loan charges 4.8% interest compounded quarterly, find the amount owed after the 13 quarters of loans and the amount owed 3 quarters later.

The loan balance after the 13 quarters is $. (Round to the nearest cent as needed.)

The loan balance 3 quarters later $. (Round to the nearest cent as needed.)

Alan has $900,000, in a retirement account paying 7.7% per year, compounded monthly. He plans to make monthly withdrawals from the account for the next 11 years. Find the withdrawal amount such that the money will last 11 years.

The amount of each withdrawal is $. (Round your answer to the nearest cent.)