The coordinates would be multiplied by 3, as the scale factor is 3, and it is a dilation, so we know the size increases.
It would be 20% because if you take 100 times 1/5, which is the same as 100/5, you would get 20, which is 1/5.
Step-by-step explanation:
Hey there!
The equation of a circle which passes through any point having centre (h,k) is;

In first blank ( x-_ ) keep "-2". In second blank (y - _ ) keep "4" and in last blank ( _ ) keep "36".
<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em>