1300 + __ = 5,000 i don't get it plz

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

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.

Answer this question i need as soon as possible