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Find the nonpermissible replacement for binthis expression.b2/5b +5

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.

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.