Purchase of Dad's business If you save the same amount every month how much must you add each month to your 7% account in order to have just enough to purchase the business when you are 35 years old? Purchase of Dad's Business: Your father has agreed to sell you his business when you turn 35 years old. The business is currently worth $100.000, but your Dad says it will increase in value by 3% per year and the sales price will include the appreciation. You have just turned 22 and have $10,000 in a bank account which pays 7% annual interest, compounded monthly