Can anybody help me with this question?

Question

A population of iguanas on the Galapagos Islands has 20 individuals with webbed feet and 180 individuals with the dominant trait of non-webbed feet. What are the frequencies of webbed feet and non-webbed feet traits in this population?

Answer 1

total individuals: 200

webbed 20/200=10%

non-webbed 180/200=90%