An ellipse centered at the origin has vertices at (0,6) and (4,0). Which is the equation of the ellipse?

How do you answer this question? (step by step)

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

Bugs bunny was 33 meters below ground, digging his way toward pismo beach, when he realized he wanted to be above ground. he turned and dug through the dirt diagonally for 80 meters until he was above ground