Answer:
Correct option is D [tex]\frac{P}{(0.8)(1.08)}[/tex]
Step-by-step explanation:
Let the laptop's original cost be = L
After 20% discount its price will be (100 - 20)% × L = 0.8L
8% sales tax on this price = (100 + 8)% × 0.8L = 1.08 × 0.8L
So, p = 1.08 × 0.8L
⇒ L = [tex]\frac{p}{(0.8)(1.08)}[/tex]
