Compare 4 x 106 and 2 x 107. A) 2 x 107 is 7 times larger than 4 x 106
B) 2 x 107 is 6 times larger than 4 x 106
C) 2 x 107 is 5 times larger than 4 x 106
D) 2 x 107 is 3 times larger than 4 x 106

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.  

download photomath it will give you the answer and show u the steps