Find the domain of the function.f(x) = 
A. 
, or (-?, -7) ? 
? 
B. 
, or 
? 
C. {x| x ? 7}, or (-?, 7) ? (7, ?)
D. 
, or 
? 
? (7, ?)
Answer: D
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Use a graphing calculator to display the solution of the given inequality or system of inequalities.y ? 9 - x2
A. 
B. 
C. 
D. 
Find the expected value of the random variable.The random variable X is the number of houses sold by a realtor in a single month at the Sendsom's Real Estate office. Its probability distribution is given in the table.
A. 3.35 B. 3.60 C. 3.50 D. 3.40
Find the equation of the line with the given slope and y-intercept.Slope 0; y-intercept (0, 2)
A. y = 0 B. y = 2x C. y = 2 D. x = 2
Solve. Remember to insert units when writing your answer.How many gallons of punch have been prepared if 10 pt 1 c of fruit juice is mixed with 
of ginger ale? Give your answer as a mixed number.
A. 2
gal
B. 1
gal
C. 2
gal
D. 5
gal