A family has an hotdog cookout every year scatter blunt shows the number of people who have attended each cookout, and the number of hotdogs that were eaten each year

15 21 25 31 36
This year 45 people are expected to attend the cookout based on the scatterplot about how many hotdogs should the family prepare
83
52
36
40

Based on the pattern shown in the scatter plot, it looks like the number of hotdogs eaten tends to increase by about 5 for every 5 extra people who attend the cookout.

If 45 people are expected to attend this year, we can estimate the number of hotdogs needed by adding 5 hotdogs for each additional 5 people.

31 (hotdogs for 31 people) + 5 (additional people) = 36 hotdogs

So, the family should prepare 36 hotdogs for the cookout this year.