Final answer:
The sale price of a wool suit on a 30%-off clearance, originally priced at $600, is calculated as $600 minus the 30% discount of $180, resulting in a sale price of $420.
Step-by-step explanation:
To calculate the sale price of the wool suit that is on a 30%-off clearance, we need to determine how much the discount is, and then subtract that amount from the original price of the suit. A 30% discount on a $600 suit means the discount is 30/100 × $600 = $180. Therefore, the sale price of the suit is the original price minus the discount, which is $600 - $180 = $420.