In June 2004, Susan set up a TDA to save for retirement. She agreed to have$250deducted from each of her monthly paychecks. The ordinary annuity's interest rate was allowed to change once each year. (Round your answers to the nearest cent.)

(a) In 2004, the interest rate was2%. Find the account balance in June 2005.

$

(b) In 2005, the interest rate was2.25%. Find the account balance in June 2006. Think of the June 2005 account balance as a lump sum that earns compound interest.

$

(c) In 2006, the interest rate was4.5%. Find the account balance in June 2007.

$