1.Sarah wants to buy a house. She feels she can afford a monthly mortgage payment of $1380.00 and no more. If she obtains a 30 year mortgage at an interest rate of 4.5% compounded monthly, how much can she borrow? 2. How much is $800.00 invested at 3% compounded semi-annually for 8 years worth? 3. How much is $22,000.00 invested at 5% compounded quarterly for 4 years worth? 4. How much interest is earned on an annuity where $700.00 is deposited quarterly for 4 years and the account earns 10% compounded quarterly