Question 18 (1 point) Mrs. Dutton needs to replace an average of 5 textbooks each year. Use the prediction equation y=3.5x+57.65
Where x is the years since 2015 and y is the cost of a textbook, to determine the cost of replacing S textbooks in 2019.
$
make sure and put your dollar amount then decimal then cent amount

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.