Respuesta :

1. 1/49

2. 1/625

3. 1/8

4. 1/216

5. 1/64

6. 25/121?

7. 1/256

8. -1/531441?

9. a^4/9

10. 1/12t^3

11. 25/b^4

12. 7/r^7

13. 4x^5/y^3

14. 3g^3

I hope this is all right, if it's not I apologize.