Let the sample space represent all the values from 1 to 10. let a = {1, 2, 8} and b = {2, 7}. what is the p ( a ∪ b ) ? (express your answer as a decimal)

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 =