What is the sum of -1/2 and 8/6? Please help! I need to pass this test! 15 points!

C) 5/6

Step-by-step explanation:

-1/2= -3/6 + 8/6 is 5/6

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.