Answer:
They subtracted the values incorrectly
Step-by-step explanation:
The formula for finding the distance between two points is this:

The person subtracted the variables incorrectly and subtracted x1 from x2 and y1 from y2 instead of the other way around.
To correctly solve it, do this:
Hope this helped!
21+21= 42 cookies minus 4 = 38 cookies
38/3= 12.66(round down to 12)
She made 12 bags with 3 in Each which is 36, so 2 were left over
Answer:
A
Step-by-step explanation:
Note that the dots in both the upper and lower row increase by 1
The 3rd diagram has 4 dots in the upper and 3 in the lower , then
the next diagram should have 5 dots in the upper and 4 in the lower
This is the case in diagram A