Robert drove at an average speed of 60 miles per hour for 6 hours. Nancy drove for 7 hours at an average speed of 56 miles per hour. Which method shows a way to calculate the difference in the distances they drove?
A. Step 1 Divide: 60 ÷ 6. Step 2 Divide: 56 ÷ 7. Step 3 Subtract the two quotients.
B. Step 1 Divide: 60 ÷ 6. Step 2 Divide: 56 ÷ 7. Step 3 Add the two quotients.
C. Step 1 Multiply: 60 × 6. Step 2 Multiply: 56 × 7. Step 3 Add the two products.
D. Step 1 Multiply: 60 × 6. Step 2 Multiply: 56 × 7. Step 3 Subtract the two products.
