HELP HELP 6th grade help

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Find the solutions for a triangle with a =16, c =12, and b = 63º

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4