A patient brings you the prescription below for insulin to t…

A patient brings you the prescription below for insulin to treat their diabetes. How many pens should be dispensed? Note: Each pen is 3 mL and contains 200 units/mL. Please round the final answer to the nearest whole number.  Rx:Tresiba U-200 FlexTouch PensDispense: 90 day supplySig: 80 units SubQ (under the skin) once daily [x] pens