So first you do:
.5 x 12.94=6.47
Next:
6.47 x 2=12.94
Then:
12.94 x 3=38.82
Now you have to do the tax:
38.82 x .062=2.41
After you get the answer for tax you have to add that to the price with out tax:
So, 38.82+2.41
=41.23
So you answer is 41.23 including the discount and tax