Answer: 
Since 8 is being multiplied to the 3 power we multiply it 3 times.
is written like 

Answer:
b
Step-by-step explanation:
Ans is 392 mm and approx 400mm as perimeter of semi circle is pi r which is 22/7*16 + 40 mm which is the total of the two side of the triangle given.
I hope this will help you
5 is not a divisor of any of the dimensions of the given box, so selections A, C, D can't work.
Each of the dimensions of selection B is a divisor of a different dimension of the box, so ...
.. the correct choice is selection B) 7 × 9 × 12.