Marta bought a 25 pound bag of food for her dog Her dog ate some of that food How can Marta find out how much food her dog ate a scale to weigh the amount of food left in the bag and then subtract the number of pounds from 25 e a tape measure to find the height of the food left in the bag and then subtract the number of inches from 25 se containers to measure the amount of food left in the bag and then subtract the number of gallons from 35 CLEAR