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:
![169lb*(0.031slugs)/(1lb)=5.24slugs](https://img.qammunity.org/2021/formulas/physics/college/8q81k8sa66wmb74sy8j6p6t3fbozeettx5.png)
(b) 1 lb is equal to 0.45 kilograms.Thus:
![1lb*(0.454kg)/(1lb)=76.72kg](https://img.qammunity.org/2021/formulas/physics/college/r5zvr9bro864qb1wrfyhhptrs46w3p9n69.png)
(c) 1 lb is the international standard symbol for the pound-mass, that is, 169 lb are equal to 169 pound-mass.