Question

Find the 30th term of an arithmetic sequence whose first term is 2 and common difference is 5.

Answer 1

First, create a formula for the arithmetic sequence.
a(n) = a(1) + d(n - 1)
a(n) = 2 + 5(n - 1)
a(30) = 2 + 5(29)
a(30) = 2 + 145
a(30) = 147

Hope that helps!

Answer 2

2 + 29 times 5 = 147