What the answer pls tell me pls i need this for middle school thx you s much

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2

Factor the expression using gcf 9b+45

How do you write something in scientific notation?