Mary decreased her time for the mile walk from 30 minutes to 24 minutes. What was the percent of change in Mary's time to walk a mile? (don't forget the % sign)

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.