Solve the system of equations by the substitution method.6x + y = -73x - 5y = -9
A. 
B. 
C. {(1, 9)}
D. 
Answer: D
Mathematics
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Graph the inequality.x - y < -4
A. 
B. 
C. 
D. 
Mathematics
Find the reciprocal.
A. 
B. 13
C. 
D. 
Mathematics
Find two sets of parametric equations for the given rectangular equation.y = 9x + 7
A. x = t, y = 9t + 7; -? < t < ?
x = 9t, y = t + 7; -? < t < ?
B. x = t, y = 9t + 7; -? < t < ?
x = t, y = 
+ 7; -? < t < ?
C. x = 9t, y = t + 7; -? < t < ?
x = 
, y = t + 7; -? < t < ?
D. x = t, y = 9t + 7; -? < t < ?
x = 
, y = t + 7; -? < t < ?
Mathematics
Write the decimal as a percent.0.009
A. 9% B. 0.09% C. 0.009% D. 0.9%
Mathematics