noobieatmath

I already found out that there are 51 multiples of two, but I didn't get how many multiples of three there were..

Perhaps you're looking for something like 5(2a-5+b)?

The firstm, third, and last statement are true.

the first one should be neither even nor odd, the second one should be also neither even nor odd and finally the third one should be even, but I can't really tell what it looks like..

so we can multiply both sides by abc

bc + ac = ab

ac - ab = -bc

a(c-b) = -bc

-a(c-b) = bc

-a = bc/(c-b)

so 

a = bc/(c-b)

Agreed! 

Perimeter = 2L + 2W 

L being the length, W being the width.

So:

if the Length is 8cm more than twice the width, we have:

2W+8

so it's:

perimeter of a rectange = 2(2W+8)+2W

You asked me not to simplify it, so that should be your answer.

Agreed!

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