The following table gives the density D (in gm/cm³) of the earth at a depth x km below the earth's surface. The radius of the earth is about 6370 km. X i D Find an upper bound for the earth's mass that you can give based on this data. 5.38 0 1000 2000 2900 3000 4000 5000 6000 6370 3.3 4.5 5.1 5.6 10.1 11.4 12.6 13.0 13.0 Round your answer to two decimal places. i 7.06 x1027 g Find the best lower bound for the earth's mass that you can give based on this data. Round your answer to two decimal places. X1027 g