math
posted by dan .
1. Jina purchased a prepaid phone card for $15. Long distance calls cost 11 cents a minute using this card. Jina used her card only once to make a long distance call. If the remaining credit on her card is $11.04 , how many minutes did her call last?
I got 3.96 minutes is that corrct?
Justin's gas tank is 1/4 full. After he buys 9 gallons of gas, it is 5/8 full. How many gallons can Justin's tank hold?
How would i set that up?

1. Your answer can't be right. 4 minutes times 11 cents = 44 cents.
She spent $3.96 on this call. Divide.