5. You have $50,000 in a brokerage account, and you plan to deposit an additional $5,000 at the end of every future year until your account totals S250 000 You expect to earn 10% annually on the account. How many years will it take to reach your goal? 6. What's the future value of a 7%, 5-year ordinary annuity that pays S 1,000 each year? If this was an annuity due, what would its future value be? 7. An investment will pay $1,000 at the end of each of the next 3 years, $2,000 at the end of Year 4, $3,000 at the end of Year 5, and $5,000 at the end of Year 6. If other investments of equal risk earn 5% annually, what is its future value