Check my work 2 Using the rule of 72, approximate the following amounts: (a) the value of land in an area is increasing 5 percent a year, how long will it take for property values to double? (Round your answer to 1 decimal place.) 10 Time period years Berences (b) if you earn 15 percent on your investments, how long wil it take for your money to double? (Round your answer to 1 decimal place.) Time period (c) At an annual interest rate of 6 percent, how long will it take for your savings to double? (Round your answer to 1 decimal place) years Time period