A tank is filled with 2 gallons of propane. The tank is being used to fuel a heater that uses propane at a rate of 0.5 gallons per hour.

The distance between mike’s house and the grocery store is 4/5 of a mile. mike has walked 1/2 of a mile from his house to the grocery store. how much farther does he needs to walk to reach the grocery store? a. 13/10 miles b. 3/4 of a mile c. 3/10 of a mile d. 2/5 of a mile