3. serena is the manager of the coffee shop. the amount of money she earns is represented by the equation = 21ℎ, where ℎ is the number of hours serena works, and is the amount of money she earns. how much more money does serena make an hour than gabe?

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?