Sure, let's go through this step-by-step:
1. Round the bill to the nearest dollar:
- The original bill is [tex]$18.15.
- When rounding $[/tex]18.15 to the nearest dollar, it becomes [tex]$18.
2. Calculate the tip:
- We are asked to estimate a 15% tip.
- 15% can be written as the decimal 0.15.
- To find 15% of the rounded bill amount, we multiply $[/tex]18 by 0.15.
3. Perform the multiplication:
- [tex]$18 * 0.15 = $[/tex]2.70 (approximately).
So, the amount of the tip is approximately $2.70.
