Which expression represents the product of unknown number and 19?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

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 =

What is negative 3/9 times negative 2/8 ?