Solve the system of equations.
x + y = 5
x – y = 9
(7, –2)
Section: 10.1
Mathematics
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Find the greatest common factor of the numbers.108 and 72
A. 12 B. 36 C. 34 D. 18
Mathematics
Simplify the given expression.
-2/3
A. 
B. 81
C. 2187
D. 9
Mathematics
Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Mathematics
Graph the linear inequality.x ? 5
A. 
B. 
C. 
D. 
Mathematics