It gives the perimeter of 14 mm and if it is 3 mm tall, times that by 2 to get 6 for the total of both side then subtract 6 from 14 and you get 8 and then divide that by 2
Answer is 4 mm wide for the two sides
Answer:
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X in this equation is about 4 and a half i know because i used a cacisnatter
There were 200 books sold. so, they need to sell 300 more to have 500 total books sold.
