Answer:
The total price of the meal after tax and tip is $31.62.
Explanation:
Given:
Their bill is = $25.40.
Sales tax = 5.5%.
Tip to waitress = 18%.
Now, to find the total price of the meal after tax and tip.
So, to get the price of the meal after sales tax :
$25.40 + 5.5% of $25.40.
![=25.40+(5.5)/(100) * 25.40.](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ntw8t0tq7vtlk4z22fusb3qi9xvetvp042.png)
![=25.40+(139.70)/(100)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/zzax6xecfwsi2namezgbzyg7gysfeb0p0t.png)
![=25.40+1.397=\$26.797](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ackkueysrmvam7adyi1rhn3200hv5wap9d.png)
Now, to get the total price after tax and tip:
$26.797 + 18% of $26.797.
![=26.797+(18)/(100) * 26.797](https://img.qammunity.org/2020/formulas/mathematics/middle-school/pvrzt7gftqcgj7e7soheai3sd4sq6n0ngo.png)
![=26.797+0.18* 26.797](https://img.qammunity.org/2020/formulas/mathematics/middle-school/tpbg90yzrtmm1mg703nqgr8bbf8iaqokdq.png)
![=26.797+4.823](https://img.qammunity.org/2020/formulas/mathematics/middle-school/mhltx88sesx4af2tijs0o2r9a72ygt6tvj.png)
![=\$31.62.](https://img.qammunity.org/2020/formulas/mathematics/middle-school/d22szx4sxjncmf67tp720jkgyh3fe9zco0.png)
Therefore, the total price of the meal after tax and tip is $31.62.