Frog A jumps two inches each time. Frog B jumps two times as far as Frog A each time. Frog C jumps three times as far as Frog A each time. How many jumps does it take each frog to go thirty-six feet?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.