Answer:
3
Step-by-step explanation:
to find the volume of a rectangular prism, Volume = length x height x width
Volume is 45 units (given)
length is 5 units (given)
45 = 5 x w x l
45 / 5 = w x l
9 = w x l
only 3 x 3 = 9 works with these numbers
45 = 5 x 3 x 3
