The graph of an exponential function is given. Match the graph to one of the following functions.
A. f(x) = -4x
B. f(x) = 4-x
C. f(x) = 4x
D. f(x) = -4-x
Answer: A
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Use ? or ? in the blank to make a true statement.{k, p, d} {k, k, p, p, d, d}
A. ? B. ?
Solve the problem.The median weekly incomes of full-time female workers for various age groups are listed in the table below. 
(Source: Bureau of Labor Statistics, 4th quarter of 1999 data)Let W represent the median weekly income (in dollars) of women at age a years. Here is the quadratic regression equation for W: W = -0.30a2 + 27.61a - 97.01Use this model to estimate the median weekly income of women at age 20.
A. $315 B. $335 C. $328 D. $320
Simplify the expression, leaving your answer with only positive exponents. Assume that all variables represent positive numbers.
-1/2
A. 
B. 
C. - 
D. - 
Write the sample space for the given experiment.A day of the week is selected at random
A. {weekend, weekday} B. 7 C. {1, 2, 3, 4, 5, 6, 7} D. {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday}