Plz asap! ! i will award find the value of x in each case. give reasons to justify your solutions! h∈ig

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.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Find the commission on a $590.00 sale if the commission is 15%.