Respuesta :

Step-by-step explanation:

it starts of with 3, 5, 7 sp the pattern is increasing by 2 starting from 3

The pattern = odd numbers increasing by 2.

4 - 1 = 3

9 - 4 = 5

16 - 9 = 7

What is the next number?

The next odd number is 9.

9 + 16 = 25

25 - 16 = 9

and so on....

Get it?