RC Sport assembles and sells low$-$end hockey goals, designed for youth and recreational hockey. At the moment, the company is buying all of the components required to assemble each hockey goal from an external supplier: the goal frame for $$50,$ padding for $$15,$ and netting for $$10.$ The company employs part$-$time labor, paid $$5$ to assemble one goal. The annual fixed cost, consisting of insurance, property taxes, and rent is $$20,000.$ The selling price of one goal is $$125.$ Ignore taxes, and other possibly relevant information not given. $($Note: Please include a written answer with part d$.)$