can you answer this question for me please ?

Suppose that you sell short 500 shares of Xtel, currently selling for $?0 per share, and give your broker $25,000 to establish your margin account. a. If you earn no interest on the funds in your margin account. what will be your rate of return after one year if Xtel stock is selling at: ii} $74; {ii} $70: (iii) $66? Assume that Xtel pays no dividends. [Leave no cells blank - be certain to enter \"0" wherever required. Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.) i. Rate of return ii. Rate of return iii. Rate of return b. lfthe maintenance margin is 25%. hOW high can Xtel's price rise before you get a margin call? (Round your answer to Zdecirnal places.) Margin call will be made at price __ c. Redo parts {a} and {b}. but now assume that Xtel also has paid at yearend dividend of $1 per share. The prices in part {a} should be interpreted as extdividend, that is, prices aer the dividend has been paid. (Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.) ii. Rate of return - iii. Rate of return - I \"ran 1 m: 9 ll! hlnut