Answer:
32%
Explanation:
If on Monday, there were 30 cats and 45 dogs at an animal shelter, the total number of animal there will be 30+45 = 75animals
If by the end of the week, 6 of the cats and 18 of the dogs had been adopted, then the total number of animals adopted is 6+18 = 24animals
Percentage of animal adopted = Total adopted/total animals × 100%
Percentage of animal adopted = 24/75×100%
Percentage of animal adopted = 2400/75
Percentage of animal adopted = 32%
Hence 32% of the animals were adopted