Create and solve a linear equation that represents the model, where circles and a square are shown evenly balanced on a balance beam.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m? -15m = -4m -7m - 8 = m - 4 -3m - 8 = 4 - m m - 4 = -7m - 8 -8 - 7m = -4 + m -8 - 3m = 4 - m

Let x = a + bi and y = c + di and z = f + gi. which statements are true?