For questions 11 – 15, sketch graphs that illustrate how a system of two quadratic equations with two variables can have the indicated number of solutions: 11. no solutions 12. exactly one solution 13. exactly two solutions 14. exactly three solutions 15. exactly four solutions

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Which of the following contains a variable?

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.