$1)$ Night Shades, Inc. manufactures biotech sunglasses. The variable materials cost is $$11\mathrm{.}13$ per unit, and the variable labor cost is $$7\mathrm{.}29$ per unit.

A$)$ What is the variable cost per unit?

B$)$ Suppose the company incurs fixed costs of $$875,000$ during a year in which total production is $190,000$ units. What are the total costs for the year?