Jan is draining her garden pond. The pond had 100 gallons of water, and she can drain it at 0.75
gallons per minute. How long will it take before the pond has only 10 gallons left?
Step-by-step explanation: it says before it only has 10 gallons left. Subtract to get 90 gallons before solving. 90/0.75=120. It will take her 120 minutes to have 10 gallons left after draining 90 gallons.
