*** no spreadsheets please! I need help with a) through d) of this question!***

$10,000 is invested for 5 years in an account that follows _t = 0.02 + 0.005

a) Find an expression for the accumulation function as a function of t.

b) Find the accumulated value at the end of the 5 years.

c) Find the effective annual rate of return in each of the 5 years

d) Find the average annual effective rate of return over the five year period