Answer:
$575.82.
Explanation:
Since Thomas owes $ 438 on his credit card, but only paid the minimum of $ 20, his debt is now $ 418 (438 - 20). A late fee of $ 39 will be added to this value, which will raise said sum to $ 457 (418 + 39). In turn, the interest rate for unpaid card balances is 26% per month. Therefore, next month his balance will be $ 575.82 (457 x 1.26).