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Tutor profile: Sana S.

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Sana S.
Tutor for nine years
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Questions

Subject: Pre-Algebra

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Question:

-5 + x = 5 Solve for x.

Inactive
Sana S.
Answer:

Bring the -5 to the right of the equal sign. This rearranges the equation to: x = 5 - (-5) x = +10

Subject: Basic Math

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Question:

Amy has $30. Betty has half as much as money as Amy. What is the difference between the amount of money Amy and Betty have?

Inactive
Sana S.
Answer:

Amy has $30 So Betty has $30/2 = $15 30-15 = $!5

Subject: Biology

TutorMe
Question:

From the perspective of biochemical demands of the human body, why is oxygen important? In other words, what is the most important function of oxygen at the level of cellular energy?

Inactive
Sana S.
Answer:

Oxygen is the final acceptor of electrons in the electron transport chain. It is required to maintain aerobic respiration. Anaerobic respiration cannot produce enough ATP to meet the body's metabolic demands and thus after some time, damage to vital organs ensues.

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