I would like to buy a sandwich and pancakes, which would be $8.50, with a 6% tax and 20% gratuity, how much would that be all in all?

9.01 maybe my math might be wrong

In total it would be $10.71

Step-by-step explanation:

Turn the percent into a decimal, 6% into 0.06. Then multiply that with 8.50.

8.50*0.06 = 0.51

Now, turn 20% into a decimal and multiply that with 8.50.

8.50*0.20 = 1.70

Then, add 0.51 and 1.70 to 8.50.

0.51+1.70+8.50 = 10.71