Write each expression in simplest form. 12y - 8 + 4y + y
i need a response for that question

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.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

How do you write 600 as a product of its prime factors (index! )