The equation of the parabola y = 3x2 - 6x + 7 in vertex form is? ​

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.