Mr. russo`s class is collecting bottles to recycle. the class collected 1,146 bottles in march and 2,555 bottles in april. how many botttles were collected?

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?