2. Laurie Fitsin owns a small sandwich shop called Laurie's Lunch Box. She has developed a sales history for the first week of March using total sales and guests served. Sales Period Monday Tuesday Wednesday Thursday Friday Saturday Sunday Week (Mon-Sun) Date 3/1 3/2 3/3 3/4 3/5 3/6 3/7 3/1-3/7 Sales $1,248.44 2,215.77 1,686.25 1,700.00 1,555.65 1,966.31 2,134.65 Guests Served 200 420 360 350 300 380 400 (a) Average Sales Per Guest (3) Should she take this shortcut? Why or why not? (2 points) (b) (1) Calculate Laurie's average sales per guest for each day of the week and calculate her totals. Fill in the gray blanks in the chart above and show your work for calculating the average sales per guest for (a) Tuesday and (b) the week. (3 points) (2) Laurie has decided that she could take a shortcut and calculate the average sales per guest for the week by adding Monday through Sunday's average sales per guest and dividing by seven. Would this shortcut make a difference in her total average sales per guest for the week? If so, how much of a difference? (2 points)

2. Laurie Fitsin owns a small sandwich shop called Laurie's Lunch Box. She has developed a sales history for the first. week of March using total sales and guests served. (1) Calculate Laurie's average sales per guest for each day of the week and calculate her totals. Fill in the gray blanks in the chart above and show your work for calculating the average sales per guest for (a) Tuesday and (b) the week. ( 3 points) (2) Laurie has decided that she could take a shortcut and calculate the average sales per guest for the week by adding Monday through Sunday's average sales per guest and dividing by seven. Would this shortcut make a difference in her total average sales per guest for the week? If so, how much of a difference? (2 points) (3) Should she take this shortcut? Why or why not? (2 points)