∵ The regular price = $85
∵ The discount = 80% of the regular price
→ To find the price after discount assume that the regular price = 100%
∵ Selling price = regular price - discount
∴ Selling price = 100% - 80% = 20%
→ now we will find the 20% of 85 to get the selling price
[tex]\because Selling=85\times\frac{20}{100}[/tex]∴ The selling price = $17
∴ Kareem paid 17 dollars
