Problem- For Acute Otitis Media (Ear Infection), Children 2 months to 6 years old should be given 85 mg of amoxicillin per kilogram of body weight per day, divided into two or three doses and taken for 10 days. For a four year old child weighing 36 lbs, given two doses per day, the amount of amoxicillin in mg per does is:
A. 7.3x10^2 mg
B. 6.8x10^-1 mg
C. 6.9x10^2 mg
D.14x10^2 mg
Please show me how work it out above problem