12. It is a combination of a series of operations or ope symbols. A. equation C. notation B. expression D. problem solving 13. What is the first rule in simplifying an expression with a series of operations A Add and suhtract in the order they annear from left to right​

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Answer:

12. B. Expressions

13 uhm where are the other choices?

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Answer:

12. c or b  sa 13 i don't know

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