Rain is falling steadily in Seattle, Washington. After 6 hours, 4 inches of rain has fallen. Write an equation that gives the amount of rain (r) that has fallen after x hours at this rate.

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.