You invest $1200 in an interest bearing account earning 2.1% annual interest rate, compounded weekly. You make no additional deposits.

A.) Derive the"customized"compound interest formula for the balance in your account. Express your"exponential base"as a decimal, taken out to thesixth decimal place.

I came up with A=P(1+r) NT <- exponent

N

So therefore it would be A = 1200 (1+0.021) 52xT <- exponent

52

Now the question where Im confused is ..

Use this formula to find the balance in your account after 5 years. Can someone please help and explain this to me? Thank you :-)