Mrs. Kabel is making a new vegetable garden. She needs to add a total of 75 cubic feet of dirt to her garden. Each bag of dirt contains 2 cubic feet of dirt. Mrs. Kabel estimates that she needs about 140 bags. Which statement best describes her estimate?
It is an overestimate because she needs to add only 38 bags to cover the 75 cubic feet.
It is an overestimate because she needs to add only 75 bags to cover the 75 cubic feet.
It is an underestimate because she needs to add 150 bags to cover the 75 cubic feet.
Her estimate of how many bags of dirt she needs is correct.
Roberto made the following table to show how many horses, saddles, and riders he has on his ranch.
How many combinations of one horse, one saddle, and one rider can Roberto make?