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Kevin L.
PLME at Brown University
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SSAT
TutorMe
Question:

Tony lifted weights for 2 hours and then jogged for 1 hour. What fraction of the full day was Tony not exercising?

Kevin L.
Answer:

7/8

SAT
TutorMe
Question:

John works at a nutrition supplement store. Every month, he has a quota of tubs to reach in sales. The amount of tubs he still has to sell by the end of each month can be approximated by the equation T = 500 - 20D, where T is the number of tubs left to be sold and D is the number of days he has worked that month. What is the meaning of the value of 500 in this given equation?

Kevin L.
Answer:

John is expected to sell 500 tubs per month.

Biology
TutorMe
Question:

What are the major functions of the proximal tubule?

Kevin L.
Answer:

Iso-osmotic fluid reabsorption, reabsorption of organic anions (e.g. glucose, amino acids), acid-base regulation (e.g. reabsorption of HCO3- and secretion of H+ and NH4+).

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