Question

What is the nth term of this sequence -2 3 8 13 18

Answer 1

Well count up this only shows 5 right? -2 to 3 is 5 then 3 to 8 is 5 then 8 to 13 is 5 then 13 to 18 is 5. Keep going till you get to the 9th number. 

6     7     8     9 
____________
23  28  33   38

38 is your final answer. Well I just hope you said 9th if not go down or up as I just told you. (by 5's)

Hoped I helped!