Mrs. Hughe’s class has 22 students. Her principal tells her that her class will increase to 30 students. Which equation can be use to find the percent increase, x? PLEASE SOME ONE ANSWER THIS, PLEASE I NEED HELP!

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.