Which number is written in scientific notation a) 0.84 x 10^6 b) -5 x 10^-12 c) 3.4 x 100^2 d) 7.8 x 10^-5

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

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