A 1/4 cube is 1/4 x 1/4 x 1/4 for a volume of 1/64
A rectangular prism that is 2 1/4 in length 1 foot in width and 1 1/4 in height
l=2 1/4----->9/4
w=1
h=1 1/4--------->5/4
V rectangular prism=9/4*1*5/4=45/16 units3
1 cube 1/4--------------------------1/64 unit3
x------------------------------------45/16 unit3
x=(45/16)/(1/64)=180
the answer is
There are 180 (1/4 cubes) in a rectangular prism that is 2 1/4 in length 1 foot in width and 1 1/4 in height