HELLPPP!! Giving brainlist to best answer

Answer:
Your answer is going to be V=240 cm^3.
Step-by-step explanation:
The formula for volume of a prism is V=Bh, where B represents the area of base and h represents height of prism. The area of the base formula is a=1/2bh
B=(1/2)(5)(8)
B=20
V=(20)(12)
V=240 cm^3