Answer:
1/2
Step-by-step explanation:
AC=18 and A'C'=9
AB(x)=A'B'
18(x)=9
x=9/18
x=1/2
The invest could probably be maybe 8% for a question
Divide the k own number by the percentage:
66 / 0.75 = 88
66 is 75% of 88
If you are asking to simplify, this is what I got. Hope I was able to help