A block of ice weighs 12 tonne. The block is a cube with side length 81cm.
Find the density of the ice.
Give your answer in kilograms per cubic metre.

Someone me! if you’re smart you can solve this!

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

Which polynomial correctly combines the like terms and expresses the given polynomial in standard form? 8mn5 – 2m6 + 5m2n4 – m3n3 + n6 – 4m6 + 9m2n4 – mn5 – 4m3n3 n6 + 7mn5 + 14m2n4 – 5m3n3 – 6m6 –2m6 – 5m3n3 + 14m2n4 + 7mn5 + n6 14m2n4 + 7mn5 – 6m6 – 5m3n3 + n6 n6 – 6m6 + 7mn5 + 14m2n4 – 5m3n3 show work