What is the total amount in an account that has had $45 per month added into it for 30 years and grew with an annual interest rate of 8%?

Given:
monthly balance = 45
term = 30 years
annual interest rate = 8%

Simple Interest = Principal x rate x term

Principal = 45 x 12 months = 540

Simple Interest = 540 x .08 x 30 = 1,296 Interest Earned for 30 years.

Total balance = Principal + Simple Interest
                      = 540 + 1,296 
Total balance = 1,836

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