How do i solve this problem? simplify. assume that all variables are positive.

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?

Suppose 38 lbs of coffee beans are required to produce 2 lbs of farmer's coffee. how many lbs of coffee beans are required to produce 309 lbs of farmer's coffee?

Daniel buys one bond each with a par value of $1,000 from grath oil, ombor medical supplies, and dwyn horticulture. grath oil bonds are selling at 120.514, ombor medical supplies bonds are selling at 90.773, and dwyn horticulture bonds are selling at 101.180. what is the total face value of daniel's bonds?