Answer:
The dose of Elixophyllin for a person of 160 lb is 436.36 mg.
Explanation:
First you have to go from pounds to kilograms. 160 lb x 1kg/2.2lb = 72.73 kg.
Then you have to multiply the dosage by the body mass in kilograms.
(6 mg/kg) x 72.73 kg ⇒ 436.36 mg.