Hello!
The answer is:
Benji requires 90mL per injection.
Why?
From the statement we know that dog's weight is 12 kg, and daily injections are required for 3 days, the dose rate is 7.5 mg/kg, so we need to calculate how many mL per injection does Benji require.
We have that:
[tex]Weight=12Kg\\\\Dose=7.5\frac{mL}{Kg}[/tex]
If the dose rate is 7.5 mL per each Kg, how many mL are required for 12 Kg? We can set it up using the following relation:
[tex]7.5mL=1Kg\\x=12Kg\\\\x=\frac{7.5mL*12Kg}{1Kg}=\frac{90mL.Kg}{1Kg}=90mL[/tex]
Hence, we have that there are needed 90 mL per injection.
Have a nice day!
