Avery works two jobs. She usually works at a retail store for 5 hours during the
day and is paid $10 per hour by the store. In the evening she works at a
restaurant as a manager for 4 hours and is paid $21 per hour. How much does
she make on average per hour for the day?
A. $3.44
B. $15.5
C. $14.89
S. $16.75