10 Nathan buys a new aquarium which can hold at most 35 fish. He puts 8 fish from his old aquarium into the new
aquarium. Then he adds 3 new fish each day for d days. Select the expression which represents the number of fish in
Nathan's aquarium after d days.
A 3d - 8
B 8d - 3
C 3d + 8
D 8d +3

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

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Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables