Answer:
$167.20
Step-by-step explanation:
0.18 x 130 = $32.4 (this is what they tipped)
the total now stands at $153.4 before tax
now to work out the tax you multiply the decimal of 9% by $153.4
0.09 x 153.4 = 13.8
the total cost of the meal is $167.20