The results of a common standardized test used in psychology research is designed so that the population mean is 100 and the standard deviation is 20. A subject earns a score of 86. What is the z-score for this raw score?

The equation represents the function f, and the graph represents the function g. f(x)=3(5/2)^x determine the relationship between the growth factors of f and g. a. the growth factor of g is twice the growth factor of f. b. the growth factor of f is twice the growth factor of g. c. the growth factor of f is 2.5 times the growth factor of g. d. the growth factor of f is the same as the growth factor of g.