Simplify. Combine like terms if possible.-4z + (-10z)
A. -6z
B. -14z2
C. -14z
D. -6z2
Answer: C
Mathematics
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Simplify the expression by using the order of operations.3 ? 4 + 5 ? 9 + 8
A. 520 B. 65 C. 548 D. 459
Mathematics
Solve the system of equations by graphing.2x - y = 3 y = 1 
A. (1, 2) B. (2, 1) C. (-2, -1) D. no solution
Mathematics
Use a graphing calculator to solve the given system of equations. 
A. (1, 2) B. (2, 2) C. (1, 1) D. no solution
Mathematics
Identify the like terms in the algebraic expression.5.2w2 - 1.8x2 - 3.1w2 + 6x + 2.9wx - x
A. 5.2w, 3.1w and 2.9w; 6 and -1 B. 5.2w2, -1.8x2 and -3.1w2 C. 5.2w2 and -3.1w2; 6x, 2.9wx and -x D. 5.2w2 and -3.1w2; 6x and -x
Mathematics