Find the error intervals for the following rounded numbers

Question 1:

9.6 (2 s.f.)

9.55≤x<9.65

Question 2:

0.0047 (3 s.f.)

0.004695≤x<0.004705

Question 3:

0.0399 (3 s.f.)

0.03985≤x<0.03995

Question 4:

0.3 (1 d.p.)

0.25≤x<0.35