What is the simple predicate of following sentence smell cooking delicious to hungry campers?

The simple predicate of the sentence "Smell cooking delicious to hungry campers" is smell.

Here's why:

* Simple Predicate: This is the verb (or verb phrase) that tells what the subject is doing or being.

* Subject: In this sentence, the subject is implied but understood to be "the smell" (of cooking).

Therefore, "smell" is the verb that tells us what the implied subject is doing (being delicious).