Help.
after 1 year, the population = 298 + 0.08 * 298 = 298(1 + 0.08) = 298(1.08)
after 2 years, the population = [ 298(1.08) ](1.08) = 298(1.08)2
after x years, the population = 298(1.08)x
f(x) = 298(1.08)x
f(3) = 298(1.08)3 ≈ 375