Acar traveled at 55 miles per hour for 2.5 hours and then at 65 miles per hour for 3 hours. how far did the car go?

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.