John Pierre lived in Lubbock, Texas, and his favorite place to buy shrimp was the Cajun Seafood Market in New Orleans, Louisiana. The round$-$trip distance between these two cities is $1,640$ miles. While gas was available at $$3\mathrm{.}80$ per gallon, John Pierre's Smart Car averaged $42$ miles per gallon. He always packed a cooler with $$20$ worth of ice regardless of the quantity of shrimp he bought to bring home. The shrimp were of o$$tstanding quality at $$12$ per pound for jumbos, and he always tried to fit $30$ pounds of the crustaceans in the cooler. What is the landed cost of a pound of shrimp?

$$17\mathrm{.}61$

$$21\mathrm{.}10$

$$19\mathrm{.}00$

$$16\mathrm{.}92$