Doctor or teacher or an engineer
Answer:
I am sure the answer is A
Explanation:
As you can see from the graph, the first time they pumped air, the numbers were 6, 1.2, and 2. Once they start pumping the numbers decrease. Therefore, I think the answer is A. It went to 5.7, 4, and 2 from 6, 1.2, and 2.1.
This is definitely an opinion, but an excel you can do A and D and just about the same as B also
<u>So i'd say C </u>
