Marco can build a computer twice as fast as Cliff. Working together, it takes them 5 hours. How long would it have taken Marco working alone?

36 inches/second = yards/minute how many yards?

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 =

Which statement justifies why angle ebc measures 90?