Answer:
the tip is $2.85
the tax will be $1.14
the total including tip and tax is $18.24
Step-by-step explanation:
12.75+1.50=14.25 total before tax and tip
14.25+1.14=15.39 total including tax
14.25+2.85=17.10 total including tip
14.25+1.14+2.85=18.24 total including tax and tip