A nurse is preparing to administer dobutamine 10 mcg/kg/min by continuous IV infusion to a newborn who weighs 4 kg. Available is dobutamine 250 mg in 500 mL dextrose 5% in water. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)