What is the total amount in an account that has had $35 per month added into it for 30 years and grew with an annual interest rate of 7%?

The formula of the future value of annuity ordinary is

Fv=pmt [ (1+r/k) ^ (kn) - 1) : (r/k) ]

Fv future value?

PMT monthly payment 35

R interest rate 0.07

K compounded monthly 12 because the payment is monthly

N time 30 years

Fv=35 * (((1+0.07:12) ^ (12*30)

-1) : (0.07:12))

=42,698.98