How do you know 8(12)-8(7)is the same as 8(12-7)

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 =

Sum of the interior angles of a pentagon

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.