7. A catering company is setting up for a wedding. They expect 150 people to attend. They can provide small tables that seat 6 people and large tables that seat 10 people. a. Find a combination of small and large tables that seats exactly 150 people. b. Let x represent the number of small tables and y represent the number of large tables. Write an equation to represent the relationship between x and y. c. Explain what the point (20, 5) means in this situation. d. Is the point (20, 5) a solution to the equation you wrote? Explain your reasoning. (From Unit 2, Lesson 5.)