When Melissa was born, her parents put $28,000 into a college fund account that earned 11.5% simple interest. Find the total amount in the account after 240 months.

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Answer:

  $92,400

Step-by-step explanation:

The amount in the account after t years is ...

  A = P(1+rt)

where P is the principal invested, r is the annual interest rate, and t is the number of years.

Here, the number of years is (240 months)/(12 months/year) = 20 years, so the formula tells you the amount is ...

  A = $28,000(1+0.115*20) = $28000(3.3) = $92400

The total amount in the account after 240 months is $92,400.

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