Will you help me if you do i will help you

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

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

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie