Use substitution to solve the system of equations. y = −2x x − 3y = 21 (3, 4) (−6, 12) (3, −6) (−2, −6)

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.