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Find the Indicated Quantity of the Arithmetic Sequence $a _ { 1 } = 6 , a _ { n } = - 74 , d = - 4 ; \text { find } n$

Question 178

Multiple Choice

Find the indicated quantity of the arithmetic sequence.
- $a _ { 1 } = 6 , a _ { n } = - 74 , d = - 4 ; \text { find } n$

A) 21
B) 22
C) 20
D) 17

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