PLEASE HELP

Given the directrix of y = 6 and focus of (0, 4), which is the equation of the parabola?

y = −1/4x²+ 5

y = −1/4x²− 5

y = 1/4x²+ 5

y = 1/4x²− 5

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

What are the domain and range of f(x)= -log5(x+2)