Work attached. Hope this helped! :)
Answer:
6x^4
Step-by-step explanation:
9.916 is the answer
150.72 mm^3
volume = (pi)(r^2)h
volume = 3.14 * (4 mm)^2 * 3 mm
volume = 3.14 * 16 mm^2 * 3 mm
volume = 150.72 mm^3