Question 1a (3 marks): Write the formula corresponding to the 'Return on equity' that youthink is being portrayed in the top left panel of the graph. Question 1b (3 marks):

Write the formula for the CET1 capital ratio that you think is beingportrayed in the top right panel of the graph. Question 1c (4 marks): Why might returns on equity have fallen from 2013 to 2019 judgingfrom the information in the graphs only? One or two sentences will suffice.