What is 21 1/2‐6 1/2
1 answer:
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To find the common difference, we use the formula where
<em>a2</em> represents the second term and <em>a1</em> represents the first term.
So plugging the second term and first term into
the formula, we have (17) - (12) which is 5.
So the common difference of
this arithmetic sequence is 5.