Answer: The price of Zoe's dinner before sales tax and tips is $13.96.
Step-by-step explanation:
Since we have given that
Amount Zoe paid after sales tax and tip = $18.60
Let the price before tax be 'x'.
Rate of sales tax = 11%
So, it becomes,
So, Amount after tax, our equation, becomes,
Now, let the amount before tips be 'y'.
Rate of tips = 20%
So, it becomes,
So, After tips it becomes,
Hence, The price of Zoe's dinner before sales tax and tips is $13.96.