The lawn on the lawn order lawn mower factory can produce 12 lawn mowers in 8 hours how many hours will it take the factory to produce 30 lawnmowers?

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?