The histogram gives information about the ages of the 115 members of a social club. 80% of the members who are over 50 years old are female. Work out an estimate for the number of female members who are over 50 years of age.

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.