The 9 officers of the student council are going on a trip to an amusement park. each student must pay an entrance fee plus $5 for meals. the total cost of the trip is $255. solve the equation 9(e+5)=255 to find the cost e of the entrance fee for each studen.

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?