Hello, there!
If s = 9, then 2s = 2 * 9
2 * 9 = 18
2s = 18
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~ Zoe
1+x you can not add them because they are not like terms
Answer:
straight line add up to 180 so subtract 42 from 180 thts ur answer
Find the slope of A. The slope of a line parallel to A would have the same slope of A. Remember, slope=rise over run.