Dena uses 8.7 pints of white paint and blue paint paint her bedroom walls. 2/5 of this amount is white paint and the rest is blue paint how many pints of blue paint that she used to paint her bedroom walls? Need answer as decimal and fraction ASAP TYSM!!!

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.