1 . If 12a + 3b =1 and 7b-2a=9, what is the average of a and b?
- A. 0.1
- B. 0.5
- C. 1
- D. 2.5
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1 . If 12a + 3b =1 and 7b-2a=9, what is the average of a and b?
View Answer | Discuss in Forum | Workspace | Report |