The length of Tom’s rectangular classroom floor is 8 feet longer than 2 times the width. The perimeter of his classroom floor is 124 feet. Write and solve an equation to find the length of his classroom.

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?