This is not the answer, but I want to tell you that I can't see what the problem says. I would help you, but I can't.
Answer:
Karla can ride 12 rides.
Step-by-step explanation:
39-15=24
24/2=12
The absolute value of -3 is -3
So we know the tank already has 5 gallons and we need 9. This means we need 4 more gallons in order to fill up the tank.
If 1/4 gallon is being filled per minute we need to find out how many 1/4 gallons makes up 4 gallons in total.
4 of the 1/4 gallons makes up 1 whole gallon. So since we need 4 whole gallons we would need 16 of the 1/4 gallons.
This means that it will take 16 minutes for the tank to hold 9 gallons of water.
