Answer: There were 180 dog owners in this survey that owned more than one dog.
Explanation:
Since this word problem is a percentage problem, you will need to convert 45% of 400 to a hundredths decimal.
45% -> 45/100 -> 0.45
Then, to find the solution, multiply 0.45 by the total number of dog owners in the survey. (400)
0.45
x400
---------
180!
The answer you'll get will be 180, so therefore, 180 dog owners in this survey owned more than one dog. Hope this helps!:)