A computer regularly $240 is on sale 30% off. What is sale price(Before tax)

Question

• Math homework
• Need it step by step 
• I know the answer, $165

Answer 1

Regular Price   -    Discount        =     Sale Price

     $240         -    $(30/100)240   =                               [note: 30% is 30/100 or 0.3 as needed by the problem]

     $240        -    $72        =

         $168

Answer 2

30% off means that you pay 70% of the original price.

 

(0.70)(240) = ?   (It's not 165!)