Of course, they are not equivalent.
One has an extra π in the equation.
Answer:$8.60
I put the work into the picture. Hope this helps!
Answer:
see below
Step-by-step explanation:
Each segment in ΔA"B"C" is 3 times the length of the corresponding segment in ΔABC. This is due to the dilation by a scale factor of 3.
Then you have ...

The latter relation matches the second choice.
Answer:
30/100×150=
24/5%, that is the answer
When it's by the magnetic poles