Explanation: $16.25+$19.50+(6.99*3) =$56.72 in total without tax or tip 56.72*0.0875 =(4.963 but in money form)$4.96 is the how much tax was 56.72+4.96 =$61.68 is the total amount including tax 61.68*.18 =$11.10 is how much tip was 61.68+11.10 = $72.78 is the total amount including tax and tip
