Topper Sports, Incorporated, produces high$-$quality sports equipment. The company's Racket Division manufactures three tennis rackets$-$Standard, Deluxe, and Pro$-$widely used in amateur play. Selected information on the rackets is given below:

$\backslash$table$[[,$Standard,Deluxe,Pro$],[$Selling price per racket,$$40\mathrm{.}00,$$$60\mathrm{.}00,$$$90\mathrm{.}00$