Motors are assembled in a process with two resources. The first resource has a capacity of $6\mathrm{.}7$ motors per hour. The capacity of the second resource is $4\mathrm{.}5$ motors per hour. The first resource has $1$ worker and the second resource has $3$ workers. Demand for this process is $2\mathrm{.}3$ motors per hour. Wages are $$18$ per hour.

What is the cost of direct labor $($in $ $)?$

Note: Round your answer to $2$ decimal places.

Cost of direct labor

per unit