Simplify the expression.1.5x + 4.7 + 5.3x - 7.5

A. 6.8x + 2.8
B. -5.4
C. 6.8x - 12.2
D. 6.8x - 2.8


Answer: D

Mathematics

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A. -5 B. 0 C. 6 D. 3

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A. -21.2 B. -2.2 C. 2.2 D. 21.2

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Convert to percent notation.0.902

A. 0.0902% B. 0.902% C. 902% D. 90.2%

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Write a system of equations associated with the augmented matrix. Do not try to solve.

A.  2x - 6y = -8  6x + 4y =  5 B.  2x - 6y = -8  4x + 6y =  5 C.  2x - 6y = 8  4x + 6y = -5 D. -6x + 2y = -8  4x + 6y =  5

Mathematics