Is -2 a real number or a natural number

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?

Suppose that g(x)=f(x+9) which statement best compares the graph of g(x) with the graph of f(x)

Solve the system of equations. x=-2y+1 and x+2y=9. show work