Answer:
(12 * 11 * 10 * 9 * 8) / (5 * 4 * 3 * 2 * 1) = 792
Step-by-step explanation:
Answer:
72.5m/hr
Step-by-step explanation:
Divide 870 by 12 to represent how many miles David drove in 1 hour.

David drove 72.5 miles per hour.
Answer:
Contrapositive must be related