FUNDRAISING A school is raising money by selling calendars for $20 each. Mrs. Hawkins promised a party to whichever of her English classes sold the most calendars over the course of four weeks. Use the table to answer Exercises 18-20. Mrs. Hawkins Fundraising Challenge Number of Class Calendars Sold 1st Period 60 ge 123 2nd Period 3rd Period 4th Period 89 126 Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use 19. How many calendars did the 1st and 2nd period classes sell on average per week? Write and solve a multiplication equation. Course 1 Chapter 7 Equations 111