Can someone please help me

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

How much orange juice do you need to make 2 servings of lemony orange slush?

Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1