Pls answer this questions quiz

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

What is the measure of angle tvu shown in the diagram below

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16