a class is having a bake sale. The class earns 7 cents for each cookie sold. Draw a graph to model this situation. How many cookies do they need to sell to earn 21 cents?
We divide the ideal earnings by the earnings per piece: 21/7. The answer is 3, so they need to sell at least 3 cookies. A graph would show cookies on the x-axis, and the price on the y-axis.
