Final answer:
The equality that represents the temperature outside at which Jada will be able to stay warm in her sleeping bag is T ≥ 30.
Step-by-step explanation:
The equality that represents the temperature outside at which Jada will be able to stay warm in her sleeping bag is:
A) T ≥ 30
This is because the sleeping bag is rated for 30F, which means that as long as the temperature is at least 30F outside, Jada will be able to stay warm in her sleeping bag.