can you help me solve this?

Question

suppose that $12,110 is invested at an interest rate of 5.2% per year, compounded continuously.
a) Find the exponential function that describes the amount in the account after time t, in years

b) What is the balance after 1 year? 2 years? 5 years? 10 years?
c) What is the doubling time?

Answer 1

a)

A = 12110(e)^0.052t

b) 

substitute values for t and calculate

c)

2 = e^0.052t