For each question, determine what the pathology is: Respiratory or Metabolic, Acidosis or Alkalosis. For #1-3, please make sure you show your work through steps A-C. 1) pH 7.5/pCO2 39, HCO3- 29 2) pH 7.3/pCO2 40, HCO3- 20 3) pH 7.51/pCO2 32, HCO3- 24 4) pH 7.25/pCO2 39, HCO3- 21