Find 4 + 7 + 10 + 13 + 16 + . . . up to 20 terms
Choose the correct choice from the following answers:
A) 650  B) 640  C) 630  D) 620  E) 610
a = 4   d = 7 – 4 = 3   Sum of first 20 terms, S20   650NSWER IS 650
<result>A</result>
Find 4 + 7 + 10 + 13 + 16 + . . . up to 20 terms