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Mathematics, 08.04.2020 11:49 pearl264

Irene has a credit card that uses the previous balance method. The opening
balance of one of her 30-day billing cycles was $2510, but that was her
balance for only the first 5 days of the billing cycle, because she then paid off
her entire balance and didn't make any new purchases. If her credit card's
APR is 11%, which of these expressions could be used to calculate the
amount Irene was charged in interest for the billing cycle?

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Irene has a credit card that uses the previous balance method. The opening
balance of one of h...
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