The average cost of a gallon of gas during july was $2.45. the average cost of a gallon of gas during august was $2.78. what is the percent of change in the average cost of a gallon of gas from july to august?

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?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

What’s -11-33k and factor each expression completely