The volume of the sphere is 36000. whats the radius

Iam so stuck. what is the worked out answer for this question?

Astudent has created the give circuit diagram. it consists of a battery, a resistor, and a light bulb. in one minute, 1.2c of charge flows through the resistor. how much charge flows through the light bulb in one minute?

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?