The mass of a patient decreased by 20 percent every month. If his mass before the decrease was 90kg, how many kilograms had he lost after 3 months ?

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

Answer question above and explain each step : )

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.