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# Tutor profile: Rachael J.

Inactive
Rachael J.
Senior in High School
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## Questions

### Subject:Pre-Algebra

TutorMe
Question:

Gary has \$30 dollars. After buying 7 sea shells, he only had 9 dollars left. How much did each sea shell cost.

Inactive
Rachael J.

Each sea shell costed 3 dollars. By working backwards, you subtract 9 from 30 to get 21 then divide that by 7 to get 3.

### Subject:Biology

TutorMe
Question:

The movement of particles against the concentration gradient is called?

Inactive
Rachael J.

Active transportation. The movement is from high to low concentration.

### Subject:Algebra

TutorMe
Question:

Which of the following is real, rational, and and an integer? 5/8, 3.14159, 8?

Inactive
Rachael J.

8 is real, rational, and an integer. 5/8 is not an integer, but it is still real and rational. 3.14159 is not an integer or rational, but it is still real.

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