I need help with the whole of number 8

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 =

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

What is the length and width of a 84.5 square foot rug? will mark