A concession stand sells hamburgers. The revenue from the hamburgers is ( ) 30 45 dollars. x+ a. The price of a hamburger is $5. Write an expression that represents the number of hamburgers sold. b. The revenue from drinks is ( ) 63 84 dollars. x+ The price of a drink is $3. Write an expression that represents the number of drinks sold. c. Write and simplify an expression that represents how many more