Answer:
z = 60
Step-by-step explanation:
100+20+z=180
120+z=180
z=60
If it is 40% off, it means you have to pay 60% of its price.
$67 × 60/100 = $40.20
the 8% of sales tax is added from the $40.20
$40.20 × 8/100 = $3.22
total price = $40.20 + $3.22 = $43.42
The fraction symbolizes division. Divide, buddy.
