Apiece of cable 4 cm long weighs 52 grams. what will a 10-cm length of the same cable weigh?

Which ratio is equivalent to 10: 85

Can some one me with these questions

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.