18. The temperature was 40° at noon. At midnight the
temperature was -10°.
Which integer describes the
change in temperature?
PLEASE ANSWER

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 =

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

What is the slope of the line shown below?