In another survey, jane found that 25% of the total number of teenagers surveyed like sandwiches. if 50 teenagers like sandwiches, what is the total number of teenagers that jane surveyed?

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?