gayle is hiking the appalachian trail. she takes a rest at 10.5 feet above sea level. The base of the mountain is 6.2 feet below sea level. HURRY!!!

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?