Final answer:
The value of b in the equation h = gb is found by dividing both sides by g, leading to the solution b = h/g.
Step-by-step explanation:
The value of b in the equation h = gb can be determined by isolating b on one side of the equation. To do this, we divide both sides of the equation by g to get b = h/g. Therefore, the correct option is b. b = h/g. This is a basic algebraic manipulation where you solve for a variable by applying the inverse operation to both sides of the equation.