1. Mr. Jones goes to Mcdonald’s to buy breakfast. His final bill was $13.50 for the Belgian Waffle Combo and a coffee. He wants to leave the waitress a 20% tip. How much will the tip be? and how much will he pay in all?2. Ms. Smith wants to buy some new clothes. She goes to the store and ends up purchasing $300 worth of merchandise, however she has a 25% off coupon. How much will she pay for the coupon?