retirement account,
Find the final amount in the following retirement account, in which the rate of return on the account and the regular contribution change over time.
$480 per month invested at 5%, compounded monthly, for 6 years; then $582 per month invested at 7%, compounded monthly, for 6 years.
What is the amount in the account after 12 years?
(Round to the nearest dollar as needed.)
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