Answer:
sorry if im rong but im prety sure its d
Step-by-step explanation:

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So, we have the following equation...

Remember
and
is the following...

Therefore, 
So, your final answer is
.
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<em>Glad to help!</em>

Answer:
2w - 13
Step-by-step explanation:
here we just simplify the expression,
3w - 4 - w - 9
becomes:
2w - 13
You add them and then it would be 30.6898033492
Answer:
64.
Step-by-step explanation:
By proportion to number of orange marbles = (40 / 5) * 8
= 320 / 5
= 64 .