What 475 rounded to the nearest ten
2 answers:
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Answer: Choice A.
Explanation:
The rule is that stuff of the form becomes
where k is some positive number.
So we'll have these steps
In the third step, I subtracted 6 from all sides to isolate x.
The last step indicates we'll have open holes at -16 and 4, with shading in between. It visually tells the reader "x can be anything between -16 and 4, but can't be equal to either endpoint".