6. Assume that Michaela purchases $12,000 worth of a stock. To do so she uses $2,000 of her own money and borrows the remaining $10,000 at an 8.0% interest rate. If the stock's value increases by 20% in one year and she sells the stock at that time, what is her rate of return? a. 13% b. 16% c. 20% d. 80% 7. Assume that Sharon purchases $5,000 worth of a stock.To do so she uses $1,000 of her own money and borrows the remaining $4,000 at a 7.0% interest rate. If the stock's value decreases by 10% in one year and she has to sell the stock at that time, what is her rate of return? a. -10% b. -50% -78% -156% c. d. ton adds to