20) Compute Joel's (in problem 19) HPR based on the price going down to $70, if dividends were $2 and the short margin return was 5%. 19) Last year, Joel sold short 300 shares of GM short for $85 per share. Initial margin is 55% and maintenance margin is 40%. Create Joel's balance sheet and tell me what (1) the total assets, (2) the liabilities, and (3) the equity, are