Simplify the expression below. \( 17 \cdot(5+3) \cdot 8.1-2.3 \)

To simplify the expression \( 17 \cdot(5+3) \cdot 8.1-2.3 \), first, calculate the value inside the parentheses: \[ 5 + 3 = 8 \] Now substitute back into the expression: \[ 17 \cdot 8 \cdot 8.1 - 2.3 \] Next, perform the multiplication: \[ 17 \cdot 8 = 136 \] Then multiply that by \( 8.1 \): \[ 136 \cdot 8.1 = 1109.6 \] Finally, subtract \( 2.3 \): \[ 1109.6 - 2.3 = 1107.3 \] So, the simplified expression is: \[ \boxed{1107.3} \]