Adam drove 512 miles in 8 hours. What was the average speed for his trip? Use the formula d=rt. Include all of your calculations in your final answer.

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.