Arectangular prism has a length of 1 1/4 centimeters, a width of 4 centimeters, and a height of 3 1/4 centimeters. what is the volume of the prism? enter your answer in the box as a simplified mixed number or a decimal. cm³

We know that

[volume of a prism]=length*width*height
 length=1 1/4 cm> (1*4+1)/4> 5/4 cm
width = 4 cm
height=3 1/4 cm> (3*4+1)/4> 13/4 cm
[volume of a prism]=(5/4)*4*13/4> 65/4> 16.25 cm³

the answer is
the volume is 16.25 cm³  (16 1/4 cm³)