Final answer:
To calculate n(1.2) in the given exponential function, substitute 1.2 for d and evaluate the expression.
Step-by-step explanation:
To calculate n(1.2) in the exponential function n = 4500 × 1.71d, where d is measured in decades, we substitute 1.2 for d and evaluate the expression.
Thus, n(1.2) = 4500 × 1.71(1.2) = 4500 × 1.71^1.2 = 4500 × 1.93 = 8,685
Therefore, n(1.2) is equal to 8,685 when rounding to the nearest whole number.