- Thread starter
- #1

#### paulmdrdo

##### Active member

- May 13, 2013

- 386

I'm confused about this problem. can you please help me solve this one?

this where I can get to,

let $x=$ marked price; $x-0.2x=$ sale price. then, $0.8x=$ sale price.

now I don't know how to set up the proper equation. please help.