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Simplify each of the following expressions. You may leave your answer in index form:
(a)# 2^3×2^5×2^(-4) #
(b)# 20^(-3)×25^2×20^3×25^(-4)#
(c)#7^(-3)×8^4×7^2×8^(-3)#
(d)#27^(1/3)×9^(1/2)#
(e)#(3/4)^2×(3/4)^3#
(f) #(20^(-2)×20^(-2)×20^(-2))/20#
(g)# 2^(-6)×5^(1/2)×2^7÷2^(-4)#