7x10^6 is x the value of 2x10^4

For which rational expression is -2 an excluded value of x?

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?

What is 74 round to the nearest ten