i need help on these 4 questions

QUESTION If a project promises to return 9% per year, how long will it take for you to double money? O 9 years 10 years 8 years 7 years QUESTION 2 Which of the following is (are) features of Sole Proprietorships? Owner is liable for firm's debts. No separation between the firm and the owner All the above One owner QUESTION 3 Which of the following is NOT a capital raising method? O IPO (firm commitment) Rights issue None of the above Dutch auction QUESTION 4 What is the APY (EAR) for the following investments (1) 2% return over 15 days; and (ii) 7.5% return over 6 O 61.9%; 55.3% 55.3%; 61.9% 48.7%; 40.5%