The family leave home at 9 A. M. At that point, the car's odometer reads 31,247. They drive until 12:30 P. M., when they stop for lunch. At the restaurant, the odometer reads 31,492. What is the unit rate of speed in miles per hour?

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?