I HAVE NO IDEA WHAT TO DO HELP

What situation is an example of an observational study

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Solve for n? [tex]z = \frac{3}{4} mn[/tex]