Answer:
c. 84 if wrong its 72 because im not sure if its esimated but if not its right.
Step-by-step explanation:
42x4.5=189
18x4.5=81
=270
Answer:

Step-by-step explanation:

Multiply each side by 3.

I believe it is a triangular prism
What I did is to add 0.52
+0.15
then try to find what could equal the same amount with 0.52
False.
The image will have dimensions that are 0.5 times those of the original.