Answer
$1$
Work Step by Step
$\bf{\text{Solution Outline:}}$
To simplify the given expression, $
\left( \dfrac{28a^6b^{12}c}{148ab^9c^4} \right)^0
,$ use the laws of exponents.
$\bf{\text{Solution Details:}}$
Since any expression (except $0$) raised to the $0$ power is $1,$ then the expression above simplifies to $
1
.$