1. The smell of cooking is delicious to the hungry camper.

2. A good fire is difficult to build.

looking for simple subject and predicate

1, smell. Predicate. Camper subject
2. Fire subject. Build predicate

3 answers

The only one you have right is that fire is the subject of the second sentence.

The simple predicate (verb) in both sentences is "is." What is the subject of the first sentence?
Camper
Have good time at the fair find the subject and predicate