A student is downloading his digital textbook. After 40 minutes, he's dismayed to find that there's still 97% of the download left. How long, to the nearest minute, is the total download?

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?