Course : Investment Management

I need the answers step by step

1) If the leverage ratio is 1.67 and you are selling 200 shares short at $30/ share, QA-how much money do you have to provide and how much is in your account? B-What is your account value 9,93 is 9543 . C-If the price decreases to $20, what is the margin now? 5593 D- If you close your account one year from now, buying at a price of $20 (assume that margin, interest was earned on cash in your account is 5% and a $1/ share dividend was paid), what was your rate of return