Mary ate 1 4/7 pies, while fred ate 1 4/7 pies. in total . how much pie did these two eat?

How do you do this geometry problem

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2