How do you find the total expense?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?