Final answer:
The question cannot be answered as it does not provide the date when Bev received the commission.
Step-by-step explanation:
The student wants to know when Bev will receive her irregular commission of $2,400. To find out, we need to look at the data provided. The question mentions that Bev's CPP contributory earning is $1,700, which is not directly related to the commission. Therefore, it's not necessary to consider her earnings in this case. Instead, we only need to know when she received the commission. Unfortunately, the given information does not specify the date when Bev received the commission, so we cannot determine how long it took for her to receive it. We can only conclude that Bev received a commission of $2,400 at some point, but the exact time frame is unknown.