Answer:
c
Step-by-step explanation:
C, the scale factor of the dilation was 1/2
21-5=16
16/-2=-8
x=8
so 3-(-8)=3+8
=11
Answer:
2.3
Step-by-step explanation:
A number when squarerooted squared will be come that number.
In formula terms, it is something like that:

So…

N= 22.4. You take 3.2 and divide by 3.2 which equals 0. So then you take 7 x 3.2 and get 22.4. The reason why you do multiplication is it's the inverse operation.