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If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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 =

Select all of the following expressions that are equal to 2.5.