•1. Identify the problem.
  
 
 •2. Write down all
 conversion factors that let you go from the given units to the units that you want your answer to be in. (Or write
 down the relevant equation.)
  
 
 •3. Set up conversion
 factors so units cancel and you’re left with the units you want your answer in. (Or substitute in the eqn and
 solve.)
  
 •