Part C: Economic Growth For the following questions, you will need the following formula: let Xo be the initial value, X be the value after t periods and g be the growth rate by period, then Xt = Xo(1 + g)t. You may also need the log properties: log(aº) = blog(a) and log(ab) = log(a) + log(b). The properties imply: log(X) = log(X) + tlog(1+g). a. Suppose the initial real per capita GDP for countries A and B is 7 thousand dollars. If the annual growth rates of countries A and B are respectively 3.3% and 5.3%, what is the the ratio XB/XA after 35 years? Round your answer to the nearest first decimal. 2.0 b. Suppose the annual growth rates of countries A and B are respectively 3.3% and 5.3%. How many years it will take for each country to double their respective real per capita GDP? Round your answer to the nearest first decimal. Country A: Country B: