Answer:$21.24.
Step-by-step explanation:
To calculate the total cost of Anthony's lunch, including the tip, without tax, you can follow these steps:
1. Calculate the tip amount:
- 18% of $18.00 (cost of the lunch) = 0.18 x 18 = $3.24
2. Add the tip to the cost of the lunch:
- Cost of the lunch + Tip = $18.00 + $3.24 = $21.24
Therefore, the total cost of the lunch, including the tip, without tax, is $21.24.