Need at number 12. assessment focus

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.

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).