The management of the UNICO department store has decided to enclose an 860 ft² area outside the building for displaying potted plants
and flowers. One side will be formed by the external wall of the store, two sides will be constructed of pine boards, and the fourth side
will be made of galvanized steel fencing. If the pine board fencing costs [tex]$4/running foot and the steel fencing costs $[/tex]2/running foot,
determine the dimensions of the enclosure that can be erected at minimum cost. (Round your answers to one decimal place.)
wood side
steel side
ft
ft