Assume that the total surface area of the cuboid is 200cm^2 work out the volume of the cuboid
2 answers:
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Its alright, You are doing better than a whole bunch of people
you know why?
because you realized you needed help and asked.
Now, aside from mushy pep talk, let me help you a bit.
When multiplying numbers with exponents, its the same as adding the exponents so
cool right?
now you can take your answer
Remember though, if you don't see the exponent, it is 1, not zero.
so if you noticed,
just remember that and you should be fine
also, if you have to simplify more, and example would be
you get that from subtracting the
from the top 
BUT
if it is
YOU DO NOTHING this is because that on the top is being multiplied by 
, which means it changes the equations value
you know why?
because you realized you needed help and asked.
Now, aside from mushy pep talk, let me help you a bit.
When multiplying numbers with exponents, its the same as adding the exponents so
cool right?
now you can take your answer
Remember though, if you don't see the exponent, it is 1, not zero.
so if you noticed,
just remember that and you should be fine
also, if you have to simplify more, and example would be
you get that from subtracting the
BUT
if it is