James is 612cm tall. how many decimeters is this.

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24