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?
The sales tax is 105.79 * 0.09 = $<<105.79*0.09=9.5321>>9.5321.
The pre-tax amount was 105.79 - 9.5321 = $<<105.79-9.5321=96.2579>>96.2579.
Jesse wants to leave a tip of 96.2579 * 0.2 = $<<96.2579*0.2=19.25158>>19.25158.
Therefore, the total will be 105.79 + 9.5321 + 19.25158 = $<<105.79+9.5321+19.25158=134.57368>>134.57368. Answer: \boxed{134.57}.