Answer:
30 + 3n
Step-by-step explanation:
33 , 36 , 39 .......
This is an arithmetic series
First term = 33
Common difference (d) = Second term - first term
= 36 - 33 = 3
Nth term = a + (n -1)* d
= 33 + ( n-1) * 3
= 33 + n*3 - 1*3
= 33 + 3n - 3
= 33 - 3 + 3n
= 30 + 3n
