If someone could help me I would really appreciate it! If you know any of the answers please let me know!!

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

What is the value of x? enter your answer in the box.

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?