21. Sofia earns money babysitting and shoveling snow. She charges different unit rates for each type of work. A. Complete the tables and determine the unit rate for each work activity. Babysitting Shoveling Snow Number Charge of Hours (dollars) Number of Hours 1 2 3 4 5 Charge (dollars) 12 24 36 48 60 Unit rate: 36-3-12 Change (dollars) 80 70 60 50 40 30 20 10 1 2 0 23 3 B. Plot the ordered pairs from each table on the coordinate plane. Use circles to represent Sofia's earnings from babysitting and squares to represent her earnings from shoveling snow. 4 5 Unit rate: 75+5=15 Sofia's Earnings 4 5 1 2 3 Number of Hours 15 30. 45 60 75 6 X

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