1-The price of a scooter decreased from $250 to $140. By what percent is the price decreased? 2-A tennis racket, regularly priced $48.00, is on sale for $31.20. What is the percent discount for the tennis racket?

3-The tire store bought a tire for $50, and sold it for $80. What percentage was the mark up?

4-A family eats at a restaurant. The bill is $43. The family leaves a tip and spends $49.88. How much was the tip as a percentage of the bill? (Find the percent increase)

5-A salesclerk gets a 7% commission on the sale of each computer. What is her commission on the sale of a computer that sells for $495?