Charlie is filling out a job application, and he needs to give the hourly wage of his last job as a manicurist. At that job, he earned $17 for each manicure he gave, he worked four days a week for 8.5 hours each day, and he gave 22 manicures a week on average.
Which of the following best describes the type of pay Charlie received — piece rate, hourly wage, or annual salary?