18 is 20% of what number

20%   of a number means  

20/100    of a number.  

20/100=0.2 we can say that  

 0.2

x

, where  

x

is a number we don't know,  

=

18

.

0.2

x

=

18

Divide both sides by  

0.2

.

x

=

90

We can check this by finding  

20 %

of  

90

and seeing that it is equal to  

18

.

90(0.2)=18

Step-by-step explanation:

i would say c is the best answer, hope it's right!

good luck! =)

cutie~

hi,

you half the rectangle that you ae asking about so then you would see the scale factor of 1/2 the one u have selected, the one on top is half.

hope this !