3. A box containing 90 oz. of cereal cost $4.50. What is the price per ounce

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 =

Identify the number as a rational or irrational.explain. 127

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30