Step-by-step explanation:
In order to convert the person's mass to slugs, kilograms and pound-mass, we must know the equivalence between these units and lbs.
(a) 1 lb is equal to 0.031 slugs. So:
(b) 1 lb is equal to 0.45 kilograms.Thus:
(c) 1 lb is the international standard symbol for the pound-mass, that is, 169 lb are equal to 169 pound-mass.