3. Profits from recycling paper, cardboard, aluminum, and glass at a liberal arts college have increased at a constant rate of $1100 in each of the last 3 years. If this year's profit (end of year 1) is expected to be $6000 and the profit trend continues through year 5, (a) What will the profit be at the end of year 5? (b) What is the present worth of the profit at an interest rate of 8% per year