Which set of data do you believe to be better? your data or your friend’s data? explain your reasoning.

Your data would be better.

The reason is because the data you have made depending on where you sourced or measured your data it's most likely going to be more reputable then your friends but it's good to compare data sets if you are both working on the same thing.

Considering the image attached to the answer, the set of data I believe to be better is "My friend's data"

Hence, in this case, the correct answer is that the set of data I believe to be better is "My friend's data."

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the growing interconnectedness of the world through communication, trade, and the exchange of ideas is an important theme in the history of the 20th and 21st centuries.

explanation:

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27