It takes one super giant pizza to feed 3 people if you invite 36 people how many pizzas will you need

How do i do this? i don’t understand

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3