Answer:
The volume of the rectangular prism in cubic inches is;
![4\text{ cubic inches}](https://img.qammunity.org/2023/formulas/mathematics/high-school/of4h8bqkcbqz1wed74cithyiz5k3vgwpih.png)
Step-by-step explanation:
Given the figure in the attached image;
The edge length of each cube is 1/2 in.
so, the height of the rectangular prism which has two cubes is;
![h=2*(1)/(2)in=1in](https://img.qammunity.org/2023/formulas/mathematics/high-school/6jhhph7m10lqzpr64yrw7oox7efeiq6tmm.png)
The length and width of the rectangular prism is;
![\begin{gathered} l=4*(1)/(2)in=2in \\ w=4*(1)/(2)in=2in \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/ln9hdukjmc1l5b8dmw11iutcqs1zgnoca4.png)
Recall that the volume of a rectangular prism can be calculated using the formula;
![V=l* w* h](https://img.qammunity.org/2023/formulas/mathematics/college/6r1v4jyudv1wid1xri6o6h85nmm0m84ukq.png)
substituting the values;
![\begin{gathered} V=2in*2in*1in \\ V=4\text{ }in^3 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/njukcxbqdic5itidvft8tk37kldfwhke5q.png)
Therefore, the volume of the rectangular prism in cubic inches is;
![4\text{ cubic inches}](https://img.qammunity.org/2023/formulas/mathematics/high-school/of4h8bqkcbqz1wed74cithyiz5k3vgwpih.png)