Sally spent 4 hours mowing 18 lawns. How long will it take her to mow 90 lawns?

5(-9w) put expression in distributive property

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 =

In the diagram of circle o, what is the measure of zabc?