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Answer: Choice A. 44</h3>
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Explanation:
Since we have a circle, the segments extending from the center outward to the edge of the circle are radius segments. Any two radii of the same circle are the same length. The triangle on the left with the 92 degree angle is isosceles. Any isosceles triangle has exactly two side lengths that are the same, which leads to the base angles being the same as well.
For the triangle on the left with angles a,b,92, the base angles are 'a' and 'b'. So a = b.
For any triangle, the angles add to 180
a+b+92 = 180
a+a+92 = 180 ... Replace b with 'a'
2a+92 = 180
2a = 180-92
2a = 88
a = 88/2
a = 44
angle b is also 44 as well
a+b+92 = 44+44+92 = 180
y = amount needed at 55% alcohol.
x = amount of pure water, or 0% alcohol
so, you have on hand 330 mL of 80% alcohol, so how much alcohol only is there on that mixture? well, is 330 mL, so 80% of 330 is 330 * (80/100) = 330 * 0.8 = 264 mL.
likewise, let's convert the other perecentage values to deciaml, bearing in mind that pure water is, well just pure water, it has no alcohol, or we can say that it has 0% alcohol.
I think c or a I’m not sure yet
