All 500 seats to the friday night seniors' play were sold, and a total of $3312.50 was collected. if adult ticket cost 7.50 each and senior tickets cost $4 each, how many bills of each type were sold?

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.