Please answer this ASAP need it fast.

How many grams are in 8 kilograms? if 100 grams = 1 kilogram

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r