Which ofthe following is equivalent to:? Four times the sum of a number and 
is 42?
A.
?
B.
?
C.
?
D.
?
E.
?
Answer: C
Mathematics
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Solve the absolute value inequality. Write your answer in interval notation.
> 8
A. (-?, -6) ? (0, ?) B. (0, ?) C. (-6, 6) D. (-6, 0)
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Find the variation equation for the variation statement.y varies directly as the square of x; y = 108 when x = 6
A. y = 36x B. y = 18x C. y = 108x D. y = 3x2
Mathematics
Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will decrease according to the formula B(x) = 0.51x. How much will today's dollar be worth in 7 years? Round the answer to the nearest cent.
A. $0.62 B. $2.70 C. $3.57 D. $0.01
Mathematics
Answer the question about the given function.Given the function f(x) = 4x2 + 8x - 4, list the y-intercept, if there is one, of the graph of f.
A. -4 B. 4 C. 8 D. -8
Mathematics