Write the equation for a parabola with a focus at (0,-5) and a directrix at y=-3

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2