How do you know when to add numbers? what is the sign rule

The physician ordered velosef (cephradine) im 50 mg/kg/day in equally divided doses four times a day for a child who weighs 40 pounds. convert pounds to kilograms and then calculate the prescribed dosage. mg every hours

Where does a fertilized egg spend most of its time?

Witch sequence of events that leads to an accidental injury? a. accident chain b. accident plan c. accidental injury d. hazard