Jesse buys his coworkers lunch from the local steakhouse. The food costs $105.79, and the 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
First, we need to calculate the total cost of the tax.
The cost of the food is $105.79, and the tax rate is 9%, so the tax amount is 105.79 * 0.09 = $<<105.79*0.09=9.52>>9.52.
Next, we need to determine the pre-tax amount.
The food cost is $105.79, and the tax amount is $9.52, so the pre-tax amount is 105.79 - 9.52 = $<<105.79-9.52=96.27>>96.27.
Now, we need to calculate the tip amount.
The pre-tax amount is $96.27, and Jesse wants to leave a 20% tip based on this amount, so the tip amount is 96.27 * 0.2 = $<<96.27*0.2=19.25>>19.25.
Finally, we can calculate the total amount, including tax and tip.
The pre-tax amount is $96.27, the tax amount is $9.52, and the tip amount is $19.25, so the total amount is 96.27 + 9.52 + 19.25 = $<<96.27+9.52+19.25=125.04>>125.04.
Therefore, the total cost, including tax and tip, will be $125.04.