15. Which of the following systems represent the graph shown? A) 2x + 3y < 6
-x + y > -4

B) 2x + 3y _> 6
-x + y _> -4

C) x + y >_ 4
2x - 3y <_ 6

D) x + y > 4
2x - 3y < 6

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Which ordered pair is a solution of the equation? y + 5 = 2(2+1) choose 1 answer ® only (5,10 ® only (-1,-5) © both (5, 10) and (-1,-5) 0 neither

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?