What is the eqivalent of a fraction -15 divided by -20

Find the value of x for which the lines are parallel.

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

Do,h = (7, 9) (14, 18) the scale factor is