Answer:
The treatment decays by half each week.
Step-by-step explanation:
The decay function is given by:
[tex]y=a(1-r)^{t}[/tex]
Here,
y = final value
a = initial value
r = decay rate
t = time
The decay function for one medications to treat dogs for fleas is:
[tex]F(x)=4\cdot (\frac{1}{2})^{w}[/tex]
Here the decay rate is:
[tex]1-r=\frac{1}{2}\\\\r=1-\frac{1}{2}\\\\r=\frac{1}{2}[/tex]
The treatment decays by half each week.
