Pls help me :) Using the focal length, find the equation of a parabola
with a focus of (-5,4) and a directrix of y=0. Explain.

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?

Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0). what are the directrices?

Acircle has a radius of 17. approximately what is the area of the circle