Mr. Wallis decided to create another table to figure out how much it costs to send a certain number of regular letters through the mail. Use proportional reasoning to complete his table below. 4-48 HW eTool (Desmos).
Number of Letters
Cost of Stamps
First set up the proportion.
What did you multiply
Use the eTool below to help you with this problem.
Click the link at right for the full version of the eTool: AC 4-48 HW eTool