Given the following table with selected values of the functions f (x) and g(x), determine f (g(2)) − g(f (−1)). x −5 −4 −1 2 4 7
f (x) 11 9 −1 −3 −7 −13
g(x) −10 −8 −2 4 8 14

A.-8
B. -5
C. -2
D.1

(I know how to find the values of f(g(2)) and g(f(-1)), f(g(2)) = -7 and g(f(-1)) = -2, I just don't know how to determine f(g(2)) − g(f (−1)) so PLZ HELP)

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