Ok, there are two parts to the question!

Calculate the nth term

6,11,16,21,26, ...

Using the nth term, calculate the 100th term in the sequence.

Ok sp the nth term is 5n+1 this is because from 6 to 11 you add 5 and from 11 to 16 ypu add 5 so that would be 5n after that you know the first one is 6 so 5n=5 for the first number so you just add one therefore 5n+1 the 100th term would be 100*5 + 1 so that would be 501