many non-profit groups ask for donations during december. do more men then women give monetary donations in the month of december? how should we write the alternative hypothesis? let mum stand for population mean donated for the men and let mum stand for the population mean donated for the women.

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth