8, 17, 26, 35, 44, ...
The first 5 terms in a sequence are shown above. Each term after the first is found by adding 9 to the term immediately preceding it. Which term in this sequence is equal to 8+(26-1)9?
a) the 8th
b) the 9th
c) the 25th
d) the 26th
e) the 27th
I picked the 27th since i remembered there was a formula that was (n-1). But the correct is d) the 26th. why? Instead of writing out all the terms is there another other way? A faster way? Thanks in advance!