Employees at a company constantly reorganize and reshelve merchandise. In doing so, they calculate floor space needed for displays. The algebraic expression lw gives the floor space needed in square units for a display that measures length l units and width w units. Calculate the floor space needed for a display whose length is 4.1 feet and whose width is 3 feet.

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.