One hundred eighty-seven and twenty-three thousandths
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20/x or 20 divided by however many friends there are
Answer:
The first one.
Step-by-step explanation:
Think about it first: if you take the square root of a number, it can never be negative! That instantly rules out the second graph.
If you're still needing corroboration, check out the attached graph.
7a+20b = 28-b
7a = 28-b-20b
7a = 28-21b
a= 28/7 - 21/7 b = 4-3b