Mario's new credit balance including interest is $2579.63
Given,
Mario's current credit balance = $2,109.65
Minimum payment amount = $68.00
The amount Mario plans to spend over the next month = $471.00
APR = 31.99%
We have to find the new balance including interest.
Monthly interest rate on credit card = APR/12 = (31.99%/12)
The credit balance before interest = (current balance) + (expense for next month) - (minimum payment)
= 2109.65 + 471 - 68
= $2512.65
The credit balance after interest = 2512.65 × (1 + 0.3199/12) = $2579.63
That is,
Mario's new credit balance including interest is $2579.63
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