Which one of the equation pairs illustrates a favorable energetic coupling in a cell? (i. e. One reaction releases sufficient energy to drive the other to completion). Select ALL that apply. Equation 1: ATP + H2O → ADP + Pi ΔG1 = –7 kcal/mol Equation 2: phosphoenolpyruvate + H2O → pyruvate + Pi ΔG2 = –14.8 kcal/mol Equation 3: glucose + Pi → glucose-6-phosphate + H2O ΔG3 = +3.3 kcal/mol Equation 4: ADP + Pi → ATP + H2O ΔG3 = +7 kcal/mol