Answer: $89.73.
Explanation:
Given , Restaurant bill = $73.25
Tax rate =

[we divide % by 100 to convert it into decimal]
=0.075
Tax amount= (Tax rate) x (Restaurant bill )
= (0.075) x ( $73.25) ≈ $ 5.49
Tip percent = 15% = 0.15
Tip amount = (Tip rate) x (Restaurant bill)
= ( 0.15) x ( $73.25) ≈10.99
Now , Total amount=Restaurant bill +Tax amount + Tip amount
= $73.25+5.49+10.99
= $89.73
Hence, your total is $89.73.