Answer:
Step-by-step explanation:
To calculate the tip you must multiply the bill by the percentage and divide by 100.
This is:
- Tip = % tip × final bill / 100
- Tip = 20% × $92.50 / 100 = $18.50 ← answer
Then, Chav should leave $18.50 for a 20% tip.
Also, notice that when you receive the bill you should find the total before taxes and calculate the tip over such total without taxes.
In this problem, you are only given the final bill, then you cannot discriminate the value of the meal as such so you use the total value of the bill.