which expression is equivalent to the given expression? a) x (19-23) b) 19 (x-23) c) x (23-19) or d)19x (1-23x)
1 answer:
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Answer:
It's B.9
Step-by-step explanation:
Because
11+9=20
20+9= 29
29+9= 38
The common difference is positive because the arithmetic sequence is increasing.
