Explain two different squares that can be made using the number 9

Taking algebra two apex courses and need with these questions

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

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 =