Answer:
triangular prism = empty cylinder + empty cylinder.
Step-by-step explanation:
by replacing the two empty cylinders with a triangular prism, we balance the mobile.
Therefore option D is the answer.
Answer:
157 - 70x
—————————
5
Step-by-step explanation:
Answer:
(5-1)/(5-1)= 4/4= 1
y - 1 = x - 1
y = x
Step-by-step explanation: