Unit 1: 1. Find the simple interest on the loan. $1100 at 7% for 10 years. %........... 2. Determine the amount due on the compound interest loan. (Round your answers to the nearest cent.) $17,000 at 3% for 10 years if the interest is compounded in the following ways. a) Annually ................ (b) quarterly......... 3. Calculate the present value of the compound interest loan. (Round your answers to the nearest cent.) $23,000 after 8 years at 4% if the interest is compounded in the following ways. a)Annually ................ (b) quarterly......... 4. In the following ordinary annuity, the interest is compounded with each payment, and the payment is made at the end of the compounding period. Find the accumulated amount of the annuity. (Round your answer to the nearest cent.) $3500 annually at 5% for 10 years. $............. 5. Calculate the present value of the annuity. (Round your answer to the nearest cent.) $16,000 annually at 6% for 10 years. $..... 6. Determine the payment to amortize the debt. (Round your answer to the nearest cent.) Quarterly payments on $13,500 at 3.4% for 6 years. $................ 7. Find the unpaid balance on the debt. (Round your answer to the nearest cent.) After 7 years of monthly payments on $170,000 at 5% for 25 years. $.................. UNIT 2. 8. Solve the system by graphing. (Enter your answers as a comma-separated list. If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.) x+y=6/xy=4 (X,Y) = 9. Carry out the row operation on the matrix. R1 R2 R1 on 4 8 6 2 55 52 10. Carry out the row operation on the matrix. 1/7 R2 R2 on 3 4 0 7 45 140 UNIT 6. 11. If a committee of 3 is to be chosen at random from a class of 14 students, what is the probability of any particular committee being selected? (Enter your answer as a fraction.) .......... 12. What if the committee is to consist of a president, a vice president, and a treasurer? (Enter your answer as a fraction.)