Answer:
If you could please write it down i will solve it for you.
Step-by-step explanation:
7/10 times 3/6 is 21/60 just multiply a cross
Ok so she has to pay 30 percent more of the 20 dollars she already has to pay because of the tax and then the tip so you multiply 20 by .30 which is six then you add that to 20 which is 26