Пожалуйста , помогите с решением. Даю 25 балов

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

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6

What are the greatest common factor of 75 and 30