This week, you are serving a wine special: a 5-ounce glass of Pinot Grigio for $7.00. You purchase 2 cases of 750-mL bottles of the wine (12 bottles per case) for $215.76. At the end of the week, 3 bottles remain. What is the percent of wine that remains?

To find the percent of wine remaining, calculate the total initial volume (18000 mL) and the volume in the remaining bottles (2250 mL), then divide the remaining volume by the total and multiply by 100 to get 12.5%.

To determine the percent of wine that remains at the end of the week, we need to calculate the total amount of wine initially purchased and then find out what fraction of that total amount is left over in the three remaining bottles.

Each case contains 12 bottles of 750 mL each, so two cases would have a total volume of 12 bottles/case imes 2 cases imes 750 mL/bottle = 18000 mL of wine. Since there are 3 bottles left, we have 3 bottles imes 750 mL/bottle = 2250 mL remaining.

To find the percentage remaining, we divide the remaining volume by the total volume and then multiply by 100:

Percent remaining = (2250 mL / 18000 mL) imes 100 = 12.5%

Therefore, 12.5% of the wine remains at the end of the week.