Question

Jesse buys his coworkers lunch from the local steakhouse. The food costs $105.79, and the sales tax rate is 9%. Jesse wants to leave a 20% tip based on the pre-tax amount. How much will the total be, including tax and tip?(1 point)





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Answer 1

To calculate the total amount Jesse will pay for the lunch, including tax and tip, you can follow these steps:

1. **Calculate the sales tax:**
\[
\text{Sales Tax} = \text{Cost} \times \text{Sales Tax Rate}
\]
\[
\text{Sales Tax} = 105.79 \times 0.09 = 9.5171 \text{ (round to } \approx 9.52)
\]

2. **Calculate the total cost including tax:**
\[
\text{Total Cost with Tax} = \text{Cost} + \text{Sales Tax}
\]
\[
\text{Total Cost with Tax} = 105.79 + 9.52 = 115.31
\]

3. **Calculate the tip (based on the pre-tax amount):**
\[
\text{Tip} = \text{Cost} \times \text{Tip Rate}
\]
\[
\text{Tip} = 105.79 \times 0.20 = 21.158 \text{ (round to } \approx 21.16)
\]

4. **Calculate the total amount spent (including tip):**
\[
\text{Total Amount} = \text{Total Cost with Tax} + \text{Tip}
\]
\[
\text{Total Amount} = 115.31 + 21.16 = 136.47
\]

Therefore, the total amount Jesse will pay, including tax and tip, is approximately **$136.47**.