Question

What is the nth term of the arithmetic sequence?

7, 5, 3, 1, …
A.
–2n
B.
7 – 2n
C.
9 – 2n
D.
n – 2

Answer 1

\[tn=a+(n-1)d,where ~a~is~first~term,d~is ~common~difference\]

Answer 2

thanks but what does n represent?

Answer 3

nth like 2nd,3rd,sixth etc.