Which inequality represents all possible solutions of - 21b<3

The inequality that represents all possible solutions of - 21b<3 is b> - (3/21).

Step-by-step explanation:

Given - 21b 3/-21 ⇒ b > - (3/21)

When you pass a negative term from one side of the inequation to the other side, the relationship between the terms (, etc) have to change, it means if the sign was > you have to change it to <, and so on.