the food costs 105.79 and the sales tax tate is 9% jesse wants to leave a 20% tip based on the pretax amount how much will the total be including tax and tip

Answer 1

To calculate the total cost including tax and tip, we can break it down into the following steps:

1. Calculate the Sales Tax:

   • Sales tax rate: 9%
   • Pre-tax amount: $105.79
   • Sales tax = Pre-tax amount × Sales tax rate \[ \text{Sales tax} = 105.79 \times 0.09 = 9.4781 \approx 9.48 \]

2. Calculate the Total with Tax:

   • Total with tax = Pre-tax amount + Sales tax \[ \text{Total with tax} = 105.79 + 9.48 = 115.27 \]

3. Calculate the Tip Based on Pre-tax Amount:

   • Tip rate: 20%
   • Tip = Pre-tax amount × Tip rate \[ \text{Tip} = 105.79 \times 0.20 = 21.158 \approx 21.16 \]

4. Calculate the Final Total:

   • Final total = Total with tax + Tip \[ \text{Final total} = 115.27 + 21.16 = 136.43 \]

So, the total amount including tax and tip will be $136.43.