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Assuming a basic exponential function form of a⋅bˣ, identify the base in the exponential function f(x) = 108.55(1.64)−⁶.⁷⁸ˣ
A. The base is b = ____. Round to three decimal places.
B. Is this a growth or decay function?
C. By what percentage is this function changing each period, where x is the number of periods?
% Round to one decimal place.