If P(A)=.25 what is P(A/B)

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!

What number is 7 units left of -15?

3.4a=57.8 what is the the value of a