For the following installment loan problems, set calculator for the "Begin" mode and your periods set for "12 periods" 6. Calculate the principal owed at the end of the 22'nd year for a 30-year, $280,000 mortgage at 6.75% annual interest with monthly payments. 7. Amortize the 26'th, 41'st, and 51'st payments for a 5-year car lease. The amount is for $18,250 and the interest rate is 9%. 8. How much money would a prospective homeowner need in order to close on a house that costs $300,000. Calculate based on a 20% down payment, 2 discount points, $1000 for the origination fee, and a $1:400 in other "miscellaneous" fees