Three of four numbers have a sum of 22. if the average of the four numbers is 8, what is the fourth number?

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

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.