Given: Inulin is freely filtered in the glomerulus and not secreted nor reabsorbed in any appreciable amount at the nephron. If the concentration of inulin in the urine is 20 mg/mL, the concentration in blood plasma is 0.2 mg/mL plasma, and the rate of urine flow is 1 mL/min.  a. What is GFR for this person? (Answer part a)

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