Agan Interior Design provides home and office decorating assistance to its customers. In normal operation, an average of $2\mathrm{.}2$ customers arrive each hour. One design consultant is available to answer customer questions and make product recommendations. The consultant averages $12$ minutes with each customer.

Agan's management would like to evaluate two alternatives:

Use one consultant with an average service time of $9$ minutes per customer.

Expand to two consultants, each of whom has an average service time of $12$ minutes per customer.

If the consultants are paid $$18$ per hour and the customer waiting time is valued at $$27$ per hour, should Agan expand to the two$-$consultant system? Explain. $($Express the total cost per hour in dollars. Round your answers to the nearest cent.$)$

The total service cost per hour, i$.$e$.$ the time value of consultant and customer together, is $

for scenario $1,$ and $

for scenario $2.$ The business should implement the

$---$Select$---$

total cost scenario, which is scenario

$?$

$.$