Question

What isthe nth term in the sequece 1 3 5 7 9

Answer 1

1, 3, 5, 7, 9, 11, 13, 15, 19

We can tell that the pattern is add 2. 

9+2 = 11

11, 13, 15, 19

Answer: 19 

Answer 2

If you add 2 the answer is 11, because 
                                                           1+2 = 3 and 3+2 = 5 and 5+2 = 7
I hope this helps

or you could....


15 would be the ninth term in this sequence , because you have

1 3 5 7 9 11 13 15

skip every other number like 1 skip 2 , you have 3 skip 4 , you have 5 , skip 6

i hope this helps?  :)