Find the reciprocal of the expression.
A. 
B. 1 - 
C. - 
D. 
Answer: D
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Use the distributive property to rewrite the algebraic expression without parentheses. Then simplify the result, if possible.3(x + 7)
A. 3x + 10 B. 3x + 21 C. x + 21 D. 3x + 7
Solve the problem.Six people from different occupations were interviewed for a survey, and their annual salaries were as 
and
What is the median annual salary for the six people?
Fill in the blank(s) with the appropriate word(s).
Find the midrange for the group of data items.10, 6, 5, 6, 1, 5, 1
A. 7.5 B. 5.5 C. 3.5 D. 8
Write an equation for a function whose graph fits the given description.The graph of f(x) = 
is reflected across the y-axis. This graph is then vertically stretched by a factor of 6.7. Finally, the graph is shifted 4 units downward.
A. f(x) = 6.7
+ 4
B. f(x) = 4
- 6.7
C. f(x) = -6.7
- 4
D. f(x) = 6.7
- 4