Final answer:
To find your share of the total cost to replace the window, divide the total cost by the number of friends you have. Your share is $67.13.
Step-by-step explanation:
To find your share of the total cost to replace the window, you need to divide the total cost by the number of friends you have.
First, calculate the total cost by adding the cost for the glass and the labor: $148.89 + $52.50 = $201.39. Since there are 3 of you including yourself, divide the total cost by 3: $201.39 ÷ 3 = $67.13. Therefore, your share of the total cost to replace the window is $67.13.