Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.a1 = 4, d = 0.8
A. an = 4n - 3.2; a20 = 76.8
B. an = 0.8n + 4; a20 = 20
C. an = 0.8n + 3.2; a20 = 19.2
D. an = 4n + 0.8; a20 = 80.8
Answer: C
Mathematics
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