So she saw 461 dolphins that are 5 year so we don't need to estimate on this problem. So I did 461/5 is 92 is the answer. Then the said how many did he spot per summer in the 5 summers he worked so I think we need to divide the answer which is 92 and the 5. 92/5 18 is your answer.

To clarify, you want to calculate the average number of dolphins spotted per summer over the course of 5 summers, based on the information you provided. Let's break down the steps:

1. First, you mentioned that she saw 461 dolphins over 5 years. To find the average number of dolphins spotted each year, divide 461 by 5: 461/5 = 92.2 dolphins per year.

2. Next, you want to determine the average number of dolphins spotted per summer. As there are 5 summers in total, divide the yearly average (92.2) by 5: 92.2/5 = 18.44 dolphins per summer.

Therefore, the average number of dolphins spotted per summer over the 5 summers she worked is approximately 18.44 dolphins.