Final answer:
The volume of a rectangular prism with dimensions of 2cm by 2cm by 7cm is calculated using the formula V = length × width × height, which results in a volume of 28cm³.
Step-by-step explanation:
To find the volume of a rectangular prism, you use the formula V = length × width × height. Given the dimensions of the rectangular prism are 2cm, 2cm, and 7cm, you multiply these dimensions together to find the volume.
So, the calculation for the volume would be:
V = 2cm × 2cm × 7cm
V = 4cm² × 7cm
V = 28cm³
Therefore, the correct answer is c. V = 28 cm³.