Find X (I’m not the best with math!)

Twelve friends shared 8 small pizzas equally.how many pizzas did each person get?

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.

You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?