Round Dosage and Weight to the Nearest Tenth as Indicated

Round dosage and weight to the nearest tenth as indicated.
Order: Erythomycin ethylsuccinate 62.5 mg PO q6h is ordered for an infant weighing 10 lb 4 oz. The recommended safe dosage is 30 to 50 mg/kg/24 h divided q6h.
The infant's weight is _______ kg and the safe dosage range is from ______ mg/day to ______ mg/day; you would a. Administer or b. Call the prescriber (answer a or b) ______.