Try 488 or 3050 but I think it is most likely 488.
58 is 5 tens (5*10) and 8 ones (8*1)
A person borrows $2500 and they must pay this amount back, plus the $125 in simple interest. In total, they must pay back 2500+125 = 2625 dollars.
Divide this amount over 6 months
2625/6 = 437.50
The monthly payment is $437.50, so the answer is choice B