Final answer:
The ability for Lulu to carry her camera in her coat pocket depends on the dimensions of both the camera and the pocket, requiring measurement and comparison, which are basic mathematical concepts.
Step-by-step explanation:
The question "Lulu wants to carry her camera in her coat pocket. This depends on the ___" seems incomplete as it does not provide what the situation depends on. However, it can be inferred that the sentence is likely referring to the size of the camera relative to the size of the coat pocket. If Lulu wishes to carry her camera in her coat pocket, she needs to consider the dimensions of the camera and ensure they are smaller than the dimensions of the pocket.
This involves measurement and comparison which are basic concepts in mathematics. Lulu might use a ruler or a measuring tape to find out the width, height, and depth of her camera. Then, she would compare these measurements to the size of her coat pocket to determine if the camera will fit.