Well, both variables appear to be negative, and the only option present that equals -20 is option A
The transaction that is being used is a reflection
If you are having trouble with ratios you can look at them as fractions. The first number being the numerator and the second number being the denominator or the other way around. When you are asked to find an equivalent ratio, you just have to find an equivalent fraction.
The pair of angles are adjacent angles and supplementary and their measure =180
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