A t-shirt is on sale for $20. Today, a morning sales clerk decreases the price by 30%, and then the afternoon sales clerk increases the price by 20%. What is the final price of the t-shirt?
7.5 days because it is 30 percent off then the the sale decreases 20 percent making it 10% off and if the price is 75 you'd have to divide it by 10 and you would get 7.5 days