Graph the system of equations:
Mathematics
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Translate from English to an algebraic expression or equation, whichever is appropriate. Let the variable x represent the number.A number increased by 
of itself
A. 2x + 
B. x - 
x
C. x + 7x
D. x + 
x
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Factor by grouping, if possible.x14 + x9 + x5 + 1
A. (x14 + 1)(x9 + 1) B. (x5 + 1)(x9 + x5) C. (x5 + 1)(x9 + 1) D. (x12 + 1)(x2 + 1)
Mathematics
Evaluate.
for a = 15 and b = 3
A. -3 B. 2 C. 3 D. -2
Mathematics