Answer :
Given:
The price of the meal before tax = $65
The sales tax = 5.8% = 0.058
Tip = 18% = 0.18
Note: The tip based on the pretax amount
so, Tip = 18% of 65 =
[tex]0.18\cdot65=11.7[/tex]The sales tax = 5.8% of 65 =
[tex]\text{0}.058\cdot65=3.77[/tex]so, the total cost =
[tex]65+3.77+11.7=80.47[/tex]so, the answer is:
The amount of the tip that Lewis gave the driver was $11.7, and the total cost of the meal including tax and tip was $80.47