You want to invest an amount of money today and receive back twice that amount in the future. You expect to earn 7 percent interest. How long must you wait for your investment to double in value? 14,21 years 10.2447 years 9.42 years 2 years Piano Masters' last annual dividend was $1.40. Future dividends will be increasing by 3 percent annually. How much are you willing to pay for one share of this stock if your required return is 18 percent? $9.33 $10.42 $9.61 $7.77 Martin Chemicals has a target debt to equity ratio of 0.50. Its cost of equity is 12%, after-tax cost of debt is 8%, and tax rate is 40%. What is the company's WACC? 7.68% 9.60% 9.30% 10.67%