Which system of inequalities is graph

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

The verbal translation for the difference of m and 7 increased by 15

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?