Answer:
20 is the answer
Step-by-step explanation:
I did the math.hope it helps :)
-12 x -12 = 144 I’m pretty sure if not then it is something different
Answer:
160,000
Step-by-step explanation:
400 * 200 is 80,000 just walking around once, so then multiply it by two.
80,000 * 2 is 160,000
Use the geometric mean for right triangles here. Like this

. Cross multiply to get

, and

. That simplifies down to

. Pull out the 9 as a perfect square of 3 and you're left with

, first choice above.