Respuesta :

Answer:

9,719.8 mg

Step-by-step explanation:

7000 grains = 1 lb

1 lb = 453.59237 g

1 g = 1000 mg

150 grains * (1 lb)/(7000 grains) * (453.59237 g)/(1 lb) * (1000 mg)/(1 g) =

= 9,719.8 mg