Answer:
$36.19
Step-by-step explanation:
Tip is added before tax.
Tipping 20% of the bill means multiplying 20%, or 0.2, by 28.45:
0.2(28.45) = $5.69
This makes the pre-tax total
28.45+5.69 = 34.14
Adding a 6% tax means taking 100%+6% = 106% of the number;
1.06(34.14) = 36.19