A restaurant bill comes to $28.35. How do you find the total cost if the tax is 6.25% and a 20% tip is left on the amount before tax?
1 Answer
See a solution process below:
Explanation:
First, we can determine the amount of the tax:
Where:
Substituting gives:
Next, we can determine the amount of the tip:
Where:
Substituting gives:
Now, we can add the amount of the bill, the tax and tip amounts to find the total cost: