To determine Marc's cumulative tip total on day 5, we would need to refer to the graph you mentioned, which shows his cumulative tips for each day. However, since I can't see the graph, I can guide you on how to find the answer.
- Look at the point on the graph corresponding to day 5.
- Move vertically up from day 5 until you reach the cumulative tips line.
- Read the value on the left side of the graph at that point.
The value you see will be Marc's cumulative tip total on day 5.
If the options are $25, $175, $300, and $400, check which one matches the value you find on the graph for day 5. If you can share the specific point or value you see at day 5, I can help confirm it against the options provided.