Final answer:
The hostess not being upset by several people coming late to the party suggests that she was not concerned about punctuality, was happy to see the latecomers, and had potentially planned for the late arrivals.
Step-by-step explanation:
The fact that several people came late to the party and the hostess was not upset can suggest a few possible inferences. Firstly, it can be inferred that the hostess was not concerned about punctuality, as she did not become upset by the late arrivals. Secondly, it can be inferred that the hostess was happy to see the latecomers, as her lack of upset suggests a positive reaction. Lastly, it can be inferred that the hostess had planned for the late arrivals, as her lack of upset indicates that she may have expected the guests to arrive late.