Identify the initial amount a and the growth or decay factor b in the exponential function. y = 0.01025x

A. a = 100, b = 1.025
B. a = 1, b = 0.01025
C. a = x, b = y
D. a = 0.01025, b = 1

Lucy is a dress maker. she sews \dfrac47 7 4 ? of a dress in \dfrac34 4 3 ? hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable.