Answer:
Sunny was given 5*65=325 mg of antibacterial medicine
Step-by-step explanation:
This is a simple proportion problem. We have the dosage and the weight of the dog
Sunny is a 65 lb dog. The antibacterial medicine must be applied with a dosage of 5 mg for every pound the dog weighs
So, the dog was given 5*65=325 mg of antibacterial medicine