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 on the food amount is 105.79 * 0.09 = $<<105.79*0.09=9.53>>9.53.
The pre-tax amount is 105.79 - 9.53 = $<<105.79-9.53=96.26>>96.26.
The tip on the pre-tax amount is 96.26 * 0.20 = $<<96.26*0.20=19.25>>19.25.
Including tax and tip, Jesse will pay 105.79 + 9.53 + 19.25 = $<<105.79+9.53+19.25=134.57>>134.57. Answer: \boxed{134.57}.