Amathematical model for population growth over short intervals is given by pequalsupper p 0 e superscript rt, where upper p 0 is the population at time tequals0, r is the continuous compound rate of growth, t is the time in years, and p is the population at time t. how long will it take a country's population to triple if it continues to grow at its current continuous compound rate of 0.86% per year?