Answer:
B) 
Step-by-step explanation:

I am joyous to assist you at any time.
Answer:
The perfect squares it lies between are 64 and 81
The answer is 6√2
And it lies between the numbers 8 and 9
Hope this helps.
Well if I did my math correctly I do believe the perimeter should be 392 ft.
6÷2.5= 2.4
2.4×35=84
8÷2.5= 3.2
3.2×35=112
84×2
112×2
_____
392
you mult. by 2 because it's a room which usually has four walls and I imagined it being a rectangle.
Area: 20 x 30 so 600
perimeter: 20 + 20 + 30 + 30 = 100