The percentage of the children that have dog or cat is = 57%
Calculation of percentage of children
The percentage of children that have a dog = 45%
The percentage of children that have a cat = 30%
The percentage of children that have dog and cat= 18%
Therefore the percentage of children that have dog or cat = (45 + 30) - 18
= 75 - 18
= 57%
Therefore, the percentage of the children that have dog or cat is = 57%
Learn more about percentage here:
https://brainly.com/question/24304697
