Answer:
$19.52
Explanation:
The interest due will be ...
$3295.89 × 0.1985/12 = $54.52
If you just pay $35, then the amount of interest added to your balance will be ...
$54.82 -35.00 = $19.52
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Additional comment
The credit card agreements I've seen recently require a minimum payment in addition to the finance charge. If those are terms on this card, the minimum payment would be $54.82 +35.00 = $89.82. Making this minimum payment would result in no interest being added to the balance.