The population of some countries has a relative growth rate of 2.75% per year. At this rate, how many years (to the nearest tenth of a year) will it take the population to double?
2 = 1( 1.0275)^n
log 2 = n log 1.0275
n = log2/log1.0275 = ....
log 2 = n log 1.0275
n = log2/log1.0275 = ....