Answer:
Yes, she is required to include her tips in gross income.
Explanation:
Yes, Carey is required to include her tips in gross income. She is required to include both her small hourly amount and her tips, declaring both as a total sum amount. Even though the customer has no obligation to pay any tip of any kind to Carey, any tip she receives will count as compensation for services, as the tips are payments for her service to the customer.