False. If x=-3 and y=-6 and you substitute them into the equation they do not add up
6 faces, 12 edges, and 8 vertices
x/20 = 21/14 (similar proportions)
x/20 = 3/2 (simplify by canceling out a factor of 7)
x = 30
Answer : B
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1L = 1000cm^3
5.455L x 1000
= 5455 cm^3
