Box/cuboid

What is the volume of a box with these dimensions:
H = 1.5 dm W = 3.5 dm L = 45 cm
Give your answer in dm³ and round to the nearest tenth.

Correct answer:

V =  23.6 dm³

Step-by-step explanation:

$$\begin{gathered} H=1.5\text{dm} \\ W=3.5\text{dm} \\ L=45\text{cm}\to \text{dm}=45:10\text{dm}=4.5\text{dm} \\ V=H\cdot W\cdot L=1.5\cdot 3.5\cdot 4.5=23.6{\text{dm}}^3 \end{gathered}$$

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