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