Three equal cubes are played adacentiy in a row. find the ratio of total surface area of the new cuboid to that of the sum of the surface area of the three cubes

Francis is getting new carpet tiles in his living room and den. his living room and den are connected. he needs to figure out how much carpet he needs and the cost involved. if each tile costs $2.00 per sq ft, how much would it cost to have new tile put in the den? a) $24 b) $36 c) $48 d) $54 plz awnser soon