$\\frac{70}{r (growth rate)} = doubling time\nr (growth rate) = 5\\%\ncalculate the doubling time.\n1,400…

$\\frac{70}{r (growth rate)} = doubling time\nr (growth rate) = 5\\%\ncalculate the doubling time.\n1,400 years\n0.14 years\n14 years

Answer