After its fastest rate of growth ever during the 1980s and 1990s, the rate of growth of world population is expected to slow dramatically in the twenty-first century. The function G(t) = 1.58e-0.213t gives the projected annual average percent population growth per decade in the tth decade, with t = 1 corresponding to 2000. (a) What will the projected annual average population growth rate be in 2030 (t = 4)? (Round your answer to two decimal places.) .67 % per decade (b) How fast will the projected annual average population growth rate be changing in 2030 (t = 4)? (Round your answer to two decimal places.) -2.52 X % per decade per decade Need Help? Read It Talk to a Tutor