Answer:
a) n+5
6, 7, 8, 9, ... , 15
b) 2n-1
1, 3, 5, 7, ... , 19
Just add in the # of terms as n and plug it into the formula given.
6, 7, 8, 9, ..., 15
1, 3, 5, 7, ..., 19
5.8m questions
7.6m answers