Your aunt gives you a fish tank that holds 48 quarts of water. you can buy saltwater for the tank but only by the gallon. how many gallons of saltwater do you need to fill the tank?

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.