Solve the equation.9x - (7x - 1) = 2
A. 
B. 
C. - 
D. - 
Answer: B
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Evaluate the expression using the given values.
?x = 5, y = 7
A. 15 B. 91 C. 7 D. 63
Where 
is the degree measure for the arc of a sector of a circle, the ratio of the area of the sector to that of the area of the circle is given by 
. Use this ratio to explain whythe area of the sector is given by 
.[Note: In the figure, the sector with arc measure 
is bounded by radii 
, 
, and 
.]
What will be an ideal response?
Solve.Suppose the dollar cost to produce n items in a factory is 
Furthermore, the number of items n produced in x hours is 
Find c[n(x)], which is the composite function that defines the dollar cost in terms of the number of hours of production x.
A. c[n(x)] = 18x + 8 B. c[n(x)] = 18x + 48 C. c[n(x)] = 9x + 48 D. c[n(x)] = 9x + 8
Solve the equation.
= 10
A. {-8, 0} B. {-6, 0} C. {-6, 4} D. {-8, 2}