A 13-year-old client admitted with a fractured femur had an open reduction and internal fixation (ORIF) 12 hours ago. The client is reporting pain 8 out of 10 on the numeric pain scale. The provider has ordered ketorolac 20 mg to be administered IV every 6 hours. The pharmacy sends over ketorolac 50 mg/1 ml. How many milliliters will the nurse administer for the correct dosage? Record your answer using one decimal place.