Which speed below is equivalent to ½ miles per hour? A
38 mile per 34 hour

B
56 mile per 512 hour

C
12 mile per 14 hour

D
34 mile per 12 hour

E
45 mile per 410 hour

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?