On his road trip, leon stops to refuel and get some snacks. he has the following purchases:
12 gallons of gas at $2.89 per gallon
2 granola bars for $1.59 each
1 apple for $0.89
2 bottles of vitamin water for $1.39 each
leon must pay 7.5% sales tax on everything but the gas, which already has tax included in the per gallon price. if leon paid $44.64, then he for his purchase.

a.
did not pay enough
b.
paid $2.60 too much
c.
paid $3.11 too much