Traveling at 55 miles per hour, how many minutes, rounded to the nearest whole number, does it take to drive 310 miles from boston to syracuse?

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?