Order: Carbamazepine 150 mg po b.i.d. for a child who is 5 years old and weighs 40 lbs. The recommended dosage for children under 6 years of age is 10-20 mg/kg/day in 2 to 4 divided doses per day, not to excess 400 mg/day. The medication strength is 100mg/5mL, how many mL would be administered for one dose?