In: Finance
Loan Amount = $280
Interest rate = 13%
Interest for the first month = Loan balance * Interest rate * 30 / 365
= $280 * 13% * 30 / 365
= $2.991780882
First monthly loan payment = [Loan amount + Interest for the first month] * 5%
= [$280 + $2.991780882] * 5%
= $14.1495891
= $14.15
Therefore, Alex's monthly loan payment is $14.15