Final answer:
To find the total amount that Lucy paid, add the subtotal, tax amount, and tip amount together. The total amount is x + 0.04x + 0.2288x = 1.2688x.
Step-by-step explanation:
Let's break down the problem step by step.
- First, calculate the amount of tax by multiplying the subtotal by 0.04 (the tax rate). The tax amount is 0.04x.
- Next, add the tax amount to the subtotal to find the total before the tip. The total before the tip is x + 0.04x = 1.04x.
- Finally, calculate the tip by multiplying the total before the tip by 0.22 (tip rate). The tip amount is 0.22(1.04x) = 0.2288x.
To find the total amount that Lucy paid, add the subtotal, tax amount, and tip amount together. The total amount is x + 0.04x + 0.2288x = 1.2688x.