1. If $1500 is deposited at the end of each quarter in an account that earns 6% compounded quarterly, after how many quarters will the account contain $90,000? (Round your answer UP to the nearest quarter.) 2. Find the future value of an annuity due of $100 each quarter for 2 1/2 years at 12%, compounded quarterly. (Round your answer to the nearest cent.) 3. What is the size of the payments that must be deposited at the beginning of each 6-month period in an account that pays 8.8%, compounded semiannually, so that the account will have a future value of $140,000 at the end of 10 years? (Round your answer to the nearest cent.)