Question

What is the 23rd term of the arithmetic sequence where a1 = 6 and a5 = 20?

Answer 1

common difference (d ) = (a5 - a1) / 4 = 20-6 / 4 = 3.5
23rd term = a1 + 22d = 6 + 22* 3.5

Answer 2

is it 83?

Answer 3

6 + 77 = 83

yup

Answer 4

thanks!