I need help with these problems

(Related to Checkpoint 5.6) (Solving for i) If you were offered $1,473.50 11 years from now in return for an investment of $700 currently, what annual rate of interest would you earn if you took the offer? GTE The annual rate of interest you would earn if you took the offer is% (Round to the nearest whole percent) (Solving for i) An insurance agent just offered you a new insurance product that will provide you with $1,168.80 12 years from now if you invest $300 today What annual rate of interest would you earn if you invested in this product? The annual rate of interest you would earn if you invested in this product is%. (Round to the nearest whole percent.) (Solving for n with non-annual periods) Approximately how many years would it take for an investment to grow twofold if it were invested at 13 percent compounded quarterly? Assume that you invest $1 today. If you invest $1 at 13 percent compounded quarterly, about how many years would it take for your investment to grow twofold to $2? (Hint: Remember to convert your calculator solution to years.) years (Round to one decimal place.)