Julianne works as a waitress. She earns $5.90 per hour plus tips.
a. Today she worked x hours. Express her pay for these hours algebraically.
b. She served nine tables. The total bill for these nine tables was y dollars. Julianne received 18% in tips from these bills. Express the amount she received in tips algebraically.
c. Express Julianne's total earnings for the day algebraically?