45 2/3 + 30 1/2 + 12 3/4=?

The vertex of this parabola is at (-2, 5). which of the following could be it’s equation? a. y=3(x+2)^2-5 b. y=3(x-2)^2-5 c. y=3(x+2)^2+5 d. y=3(x-2)^2+5

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

How do i do this activity, is appreciated