The cost of Shai's haircut is $25 and the cost of his shave is $30, so the subtotal before tax and tip is:
$25 + $30 = $55
The sales tax is 8.25%, so the tax amount is:
$55 * 0.0825 = $4.54
The total cost before tip is:
$55 + $4.54 = $59.54
If Shai tips 25% on the subtotal, the tip amount is:
$55 * 0.25 = $13.75
So the total cost including tax and tip is:
$59.54 + $13.75 = $73.29
Therefore, Shai must pay a total of $73.29 if he gets his hair cut and beard shaved and he tips the barber 25%. The answer is option (B).