After a 15% discount, a jacket costs $68. What was the original price of the jacket, before the discount?

A 15% discount means the customer pays 85% of the original price. Let $p$ be the original price: $0.85p = 68$, so $p = \frac{68}{0.85} = 80$. The original price was $80, choice A. Check: 15% of 80 is 12, and $80 - 12 = 68$. Choice B ($78.20) comes from adding 15% to the sale price ($68 \times 1.15$), which wrongly treats 15% as a percent of the discounted price. Choice C ($83) results from adding 15 dollars straight to 68. Choice D ($78) comes from adding a rounded 10 dollars or approximating. The discount applies to the original price, not the sale price.