answers are $7800, 6.667%

for first one im not sure why you subtract brokers commission if it hasnt been 6 months yet, and unsure on the second one

sorry i mean $3000 for the first one, i mixed questions up I am just confused on the second question

(2) (8 points) John Q. Investor decides to buy 1,000 shares of Exxon Mobil (XOM) on 75% margin. XOM is currently trading at $60.00 per share. The following day, Exxon Mobil (XOM) increases to $63.00 per share. (3 points) On this investment, John made a profit of $ (3 points) The rate of return on John's investment is (2 points) On this investment, the leverage was