Answer:

Step-by-step explanation:
<em>Set the problem up as a proportion</em>
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<em>cross multiply</em>
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<em>divide both sides by 30</em>
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<em>plz mark me brainliest. :)</em>
If the length is X
X+X+X = 9X+6
3X=9X+6
-6X=6
X=-1
but because length can't be negative X=1
The answer to the problem is C 2^12 the reason is because 16^3 is 4,096 and
2^7=128
2^11=2,048
2^12=4,096 which is what we want so this is the answer
2^64=18,447,744,073,709,551,616 which is not even close to what we want at all
So the answer is C 2^12
Because supplementary angles means mA + mB = 180.
Then subtract 80 from 180 which will get you 100.
So B = 100