Write the vertex form of the equation of the parabola which has a vertex of (0,0) and contains the point (2,-2)

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

Anyone know? will mark brainliest if correct!

You are shooting hoops after school and make 152 out of a total of 200. what percent of shots did you make? what percent did you miss? show proportion(s).