Question

Which is the 25th term of the arithmetic sequence where a1 = 7 and a9 = 47 ?

Answer 1

25th term is 127

Answer 2

127, from \[a _{n}=a _{1}+(n+1)d\] D is the common difference, n is the number you're looking for, and a1 is the starting number while a(n) is the value of the number you're looking for

Answer 3

Common difference in this question is 5, n is 25, a1 is 7, and a(n) is 127