Crystal deposited $175 in an account 52 years ago. Today, that account is worth $2,100. What was the annual rate of return on this account? 3.89 percent 4.89 percent 5.73 percent 5.21 percent 4.86 percent Crystal purchased a house for $29,000. Today, the house is worth $47.900. How many years have passed if the price of the house has increased at an annual rate of 7 percent? 6,36 years 5.56 years 6,68 years 7.42 years 6.59 years