13. A circle has a diameter of 12 in. What is the area of a sector determined by a 60°arc? Leave your answer in terms of pi.​

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?