Please help! It’s about pythagorean theorem. I attached the image

Allie answered 72% of the questions on her math test correctly. if she answered 18 questions correctly, how many questions were on the test?

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.