What is the answer to 4x-7=-271

Combine like terms to make a simpler expression 3z+z

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.

Acircle has a circumference of 7.850 units. what is its radius?