Ms, Garza opened an account with a deposit of $5,000. The account earned annual simple interest. She did not make any additional deposits or withdrawals. At the end of 4 years, the balance of the account was $6,500. What is the annual interest rate on this account?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )