Correct Answer: D

Explanation: The process begins by determining the price before tax, where Linda paid a total of 153.30, including a 5% sales tax. The equation P+(0.05×P)=153.30 is used to find the price P before tax, resulting in P= ​=146. Next, the price of 146 dollars reflects the amount after a 10% discount is applied. Prior to this additional discount, let D denote the price. The equation D−(0.10×D)=146 gives D==162.22, revealing the price before the first 20% discount. Lastly, O represents the original price of the coat, calculated as O−(0.20×O)=162.22, leading to O==202.78. Thus, the original price of the coat, before any discounts and taxes, was approximately 202.78 dollars.