The vertices of a rectangle are $J(4,8),\ K(12,8),\ L(12,4)$ , and $M(4,4)$ . Draw the image after a dilation with a scale factor of $\frac{1}{4}$ .

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.  

i think the answer is b. i hope i !

they r 125, and 216

so the sequence goes 1,8,27,64,125,216