Answer:
The answer to your question is 4 units
Step-by-step explanation:
Data
Volume = 40 u³
width = 2 u
height = 5 u
length = ?
Formula
Volume of a prism = width x height x length
Solve for length
length = Volume / (width x height)
Substitution
length = 40 / (2 x 5)
Simplification
length = 40 / 10
Result
length = 4 u