Use the data from the dot plot below to answer the question. How many students from this data sample have three siblings?

A. Three students have three siblings

B. One student has three siblings

C. Four students have three siblings

D. Two students have three siblings

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.