Answer : The order of employees from the greatest to the least unit rate in dollars per hour is:
Rate of Arianne > Rate of Francois > Rate of Garrick > Rate of Carissa
Step-by-step explanation :
First we have to calculate the rate of employees in dollars per hour.
Rate of Francois =

Rate of Carissa =

Rate of Garrick =

Rate of Arianne =

The order of employees from the greatest to the least unit rate in dollars per hour is:
Rate of Arianne > Rate of Francois > Rate of Garrick > Rate of Carissa