Answer:
the top one
because identity of addition is adding 0
Answer:
Yes
Step-by-step explanation:
for pens you are adding 3 each time
for boxes you are adding 1 each time
it is correct because they all have the same unit rate
3/1=3
6/2=3
9/3=3
12/4=3
Answer:
It is
Step-by-step explanation:
Answer:
98.1 is your anwser I know this kinds of stuff
