Answer:
42 or 42/1
Step-by-step explanation:
Divide 14 by 1/3.
Let denote the <em>n</em>-th term in the progression. So
for some constant difference between terms <em>d</em>.
Solve for explicitly:
and so on, up to
We're told that the third term is , and the ninth term is , and according to the recursive rule above, we have
Solve for <em>d</em> :
b
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