Calculate the mean of 7,0,11,10

Mary had at least an 80% on her test write an inequality to represent this situation

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 =

Which of these tools or constructions is used to inscribe a hexagon inside a circle?