A car travels at a speed of s miles per hour. It covers 126 miles in 3 hours. The equation that can be used to find the value of s is
X S=
The speed of the car is
miles per hour.

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.