Prove the following trigonometric identity and show your work: (in other words, show that the identities on the left equal the one on the right). show all of your work. sinθ cot θ = cos θ

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?