Step-by-step explanation:
a. We have v as the amount of drug(mg) in the blood at time t (hrs)
b. Flow rate in = k litre/he
For a circulatory system we have the flow rate in and flow rate out to be the same
Therefore,
Flow rate out = k litre/hr
concentration of drug going in = 0mg/litre
Concentration of drug going out = v mg/litre
V(0) = 20mg since 20mg was taken at midnight
V(0) = 20
Half life t1/2 = 36 hours
V(36) = v(0)/2
= 20/2
= 10mg
C. 


d. solution


v(0) = 20

c = 20
so

e.



we take log

please check attachment for answer f
Answer:
c S(x) = 12(3,000) + 0.025(x – 250,000)
Step-by-step explanation:
I got it right
Answer:
$7.2
Step-by-step explanation:
first one no second one no third one no frouth no fifth yes last one no