Aplumber has a piece of copper tubing that is 112.8 inches long. he needs to cut the tubing into 12 equal pieces to repair some leaky pipes. how long will each piece of tubing be?

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?