Answer:
The probability of children who have both a cat and a dog is 63/100 or 63%
Explanation:
45/100 or 45% of the children already have a cat so you would add that to the amount of kids who already have a cat and a dog (18%)...Therefore 63% of students have a cat already may also have a dog.
Answer:
Curitiba, city, capital of Paraná estado (state), southern Brazil. It lies about 3,050 feet (930 metres) above sea level near the Atlantic margin of the Brazilian Highlands and the headwaters of the Iguaçu River. ... Since 1940 Curitiba has sustained rapid economic and population growth.