Please help on homework question

Need this asap if anyone can i would be very grateful. if you could show workings that would really

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

In parallelogram abcd the ratio of ab to bcis 5: 3. if the perimeter of abcd is 32 find ab