To find out how many cookies the seventh graders will receive, we need to identify the pattern in the number of cookies given to each grade. From the information provided, we can observe that the number of cookies given to each grade increases by 4 each time.
For example:
1st graders: 4 cookies
2nd graders: 8 cookies (4 cookies + 4 cookies)
3rd graders: 12 cookies (8 cookies + 4 cookies)
4th graders: 16 cookies (12 cookies + 4 cookies)
We can see that the number of cookies increases by 4 each time. Therefore, for each subsequent grade, we need to add 4 more cookies.
To find out how many cookies the seventh graders will receive, we can use the pattern:
5th graders: 16 cookies + 4 cookies = 20 cookies
6th graders: 20 cookies + 4 cookies = 24 cookies
7th graders: 24 cookies + 4 cookies = 28 cookies
Therefore, the seventh graders will receive 28 cookies.