Spiral Review (5.OAA What is the value of the following express 2 x {6 + [12 + (3 + 1)]} - 1

Np4=12np2 with clear explanation.

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.

Me n o w. i need t h i s. 10 points