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The cube has 6 this same faces.
Therefore the surface area is equal 6 · 7cm² = 42cm²
For the solid line it is (0,-3), (0,3), (-3,4)
for the dotted line it is (-1,-1), (-3,-2), (-3,2)
hope this helps don't know for sure though if its right i just did the best i could do.
1 kilogram = 2.205 pounds
1.25 kilograms x 2.2 pounds = 2.75 pounds approximately
24 + 0.44x = 19 + 1.69x
Subtract 19 from both sides
5 + 0.44x = 1.69x
Subtract 0.44x from both sides
5 = 1.25x
Divide by 1.25 on both sides
4 = x
