Suppose that the parents of a young child decide to make annual deposits into a savings account with the first deposit on the 5th birthday and the last on the 15th birthday. Then on the 18th birthday a with drawl was made of $2000, on the 19th birthday a with drawl was made of $2400, on the 20th birthday a with drawl was made of $2800 and on the 21st birthday a with drawl was made of $3200. If the effective annual interest rate is 8% during this time, what are the annual deposits in years 5-15? Please answer without using a financial calculator and only using equations as I will not be allowed one on the exam.