show work and ecplain please

10. IRAs. Ricky and Sharon married at age 22, star a family, and bought a house. At age 30, they began making a contribution of $5,000 to a tra- ditional IRA. They continued making these con- tributions annually until age 60. If the average return on their investment was 8%, how much was in their IRAs at age 60? What was their total investment