Elementary and intermediate algebra please help solve.

tlneader

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write the interval notation for the interval of real numbers.
-50 -40 -30 -20 -10 0
 

stapel

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tlneader said:
write the interval notation for the interval of real numbers.
-50 -40 -30 -20 -10 0
What "interval"? I only see a listing of numbers...?

Please clarify. Thank you.

Eliz.
 

tlneader

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Adding and subtracting fractions please check my work.

2/15 + 8/21 = 54/105


9/16 - 1/12 = 69/144
 

stapel

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tlneader said:
2/15 + 8/21 = 54/105
9/16 - 1/12 = 69/144
I'm sorry, but I don't understand. How does the above clarify your "intervals" question? Or is this a totally new question (in which case, it should have been posted separately)?

Thank you.

Eliz.
 

skeeter

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