Bernardo needs to find the dimensions of his king-size mattress set so he can build a new bed frame. He knows the area of the bottom of the mattress set is 42 square feet and its length is 7 feet. Which other measurement does he
need to know in order to build the bed frame?
O the perimeter of the mattress
O the volume of the mattress
the width of the mattress
O the area of the side of the mattress
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Nay