Find the perimeter of a triangle with sides 2x - 3y, x2 + y and 2x + y units

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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.

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?