To determine drug dosages doctors estimate a person s body surface area BSA in meters squared using the formula hm BSA where h is the height in centimeters and m the mass in kilograms 60 Calculate the rate of change of BSA with respect to mass for a person of constant height h 182 Give your answer exactly using symbols Do not approximate irrational numbers with decimals for this part of the problem d dm BSA What are the units for Om kg O m O cm kg O kg d dm BSA For a person of constant height h 182 cm how fast is their BSA changing when their mass is m 72 Use decimal notation Give your answer to six decimal places