A football quarterback has 2 more chances to throw a touchdown before his team is forced to punt the ball. He misses the receiver on the first throw 30% of the time. When his first throw is incomplete, he misses the receiver on the second throw 10% of the time. Part A: What is the probability of not throwing the ball to a receiver on either throw?

Part B: What is the probability of making at least 1 successful throw?