Respuesta :

The original price of the suit: $300
The sale price of the suit: original price * 0.70 = sale price
The sale price of the suit is: $300 * 0.70 = $210
$300 = 100%

30% discount means that the suit now costs 70% of the original price.

x - price of suit after discount

x = 70%

x = (70*300)/100
x = $210