6. If \[m\] and \[k\] are positive and \[10m^2k^{-1} = 100m\], what is \[m^{-1}\] in terms of \[k\]?
(A) \[\frac{k}{10}\]
(B) \[\frac{k}{90}\]
(C) \[\frac{\sqrt{k}}{10}\]
(D) \[\frac{1}{10k}\]
(E) \[\frac{1}{90k}\]

7. Edna and Nancy leave the house of a common friend at the same time and walk for 4 hours. Edna walks due east at the average rate of 4 kilometers per hour and Nancy walks due north at the average rate of 3 kilometers per hour. What is the straight-line distance between them, in kilometers, at the end of the 4 hours?
(A) 4
(B) 5
(C) 12
(D) 16
(E) 20

8. The figure above shows the graph of a quadratic function \[f\] that has a minimum at the point \[(1,1)\]. If \[f(b) = f(3)\], which of the following could be the value of \[b\]?
(A) -3
(B) -2
(C) -1
(D) 1
(E) 5

Student-Produced Response Questions:

9. A family of 5 is planning a 4-day camping trip. Each person will need to bring 1 bottle of water for each day of the trip. If the water is sold only in 3-bottle packages, how many packages must be family buy for the trip?

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