Plz help with part b

1/3 pounds of butter

Step-by-step explanation: as you can see on the top of the screenshot. itstates that there was 1/2 pounds of butter and that they used 1/3 for the recipe. therefore she used 1/3 pounds of butter in the

recipe

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.