Hey! can you please do these 5 questions correctly? Thanks and i need answers ASAP :)) (will give 15 points and brainliest)

Pls i’m too dumb to know what i’m doing right now

You call the pizza store and find out that eachpizza has 12 slices. you expect 16 people tocome, and you estimate each person will eat 3slices. how many pizzas should you order

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is