Answer please i put a lot of points

In the surface area formula for cylinders which expressionrepresents the lateral area

Let w=23 . what is the value of w + 45 ?

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 =