Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years. 400,000(1.32)^t
the approximate monthly growth rate of the number of active members on the site can be modeled by an expression in the given form.
a^bt

determine the values of a and b that reveal the approximate monthly growth rate of the number of active members on the site.
a.
a = 12 and b = 1.023
b.
a = 1.32 and b = 12
c.
a = 1.023 and b = 12
d.
a = 12 and b = 1.32