6-13.(Calculating the number of annuity periods) Greer is borrowing 300,000 to buy a house in Amsterdam at 5 percent per annun compounded monthly. How long will it take to pay off the amount if she makes monthly payments of 1,600? deposit l'equired amount when the final deposit is made? 6-21. Calculating the number of annuity periods) Rajesh has just bought a large flat screen TV for 4,000 on hire purchase. He has agreed to pay 16 percent per annum com- founded monthly interest on this amount. He has agreed to a monthly payment of C200. How.long will he take to repay the loan? How much will he pay in interest on this loan? 6-22. (Solving a comprehensive problem) You would like to ha 1