Answer:
The Answer Is <em>B</em> and <em>G</em>
Step-by-step explanation:
I went and clicked all the answers and found out these two were the correct answer.
221,000,000,000,000,000,000 = 2.21 x 10^20
therefore, the answer is b
1. x = 3i square root of 3 , x = -3i square root of 3
2. x = -2 3i , x= -2 -3i
144cm
Just search it up lol
31% of 40 is 12.4 exactly
m=104
Add 4 to each side
