Question

1. if someone says that a jacket is 25% off, what does that mean? it means its 25% of of the origane prize

Explanation:

Step1: Define percentage - off concept

A discount of $x\%$ means the price is reduced by $x\%$ of the original price.

Step2: Analyze 25% - off case

If a jacket is 25% off, it means the price is reduced by 25% of the original price. In other words, you pay $(100 - 25)\%=75\%$ of the original price.

Answer:

It means the price of the jacket is reduced by 25% of its original price, and you pay 75% of the original price.