Alma bought a laptop computer at a store that gave a 20 percent discount off its original price. The total amount she paid to the cashier was p dollars, including an 8 percent sales tax on the discounted price. Which expression represents the original price of the laptop in terms of p?
A0.8 * 1.08 * p
Bp / (0.8 * 1.08)
C0.88 * p
Dp / 0.88
Answer & Solution
Correct answer: B. p / (0.8 * 1.08)
Let original price be x. Discounted: 0.8x. With 8% sales tax: 0.8x * 1.08 = p. Solve: x = p / (0.8 * 1.08).
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