1. How long does it take to repay one-half of the principal on a $70,000, 7 percent, 15 year mortgage loan if all payments are made on time?
2. What is the monthly payment on a home costing $150,000, if the borrower pays 30 percent down, and takes out a 25 year mortgage at a 9 percent APR?
3. Analyze Apple's revenue growth, cost increase, and net income growth. What factors do you think determined the movements.