In san antonio 8 bats eat 40 grams of insects in one night at this rate how many grams of insects could 64 bats eat in one night ? ?

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?