A child is 2):] inches long at birth. If we consider that the baby will grow at a rate proportional to its body size until adulthood, then the percentage of her adult height attained can be modeled by the logarithmic function f(x) = 20 + 47mm + 2), J (4) = 20 7 4/ 10g(4 + 2), where x represents her age in years and f (x) represents the percentage of her adult height reached at age x. What percent of the child's adult height is attained by age 16? Round your answer to the nearest whole percentage, if necessary