\fJ K: (a) Flnd the exponential growth or decay model y - ac\" or y - PM for the population of each country by letng ' t - 15 W tn 2015. Use the model to predict the population of each country In 2035. (Round your values of b no ve declmol plum. Round your values of a to one declmal place. Round your populatlon predictlons for 2035 to: one dedmol place.) .- 0: l 3 E ll I 7 wigoulotlonln 2035 I P tlol ,2 I (In millions) A Y ' aeb' X B Y 3 aebt x C Y = debt x % 7 7 g D y = debt x