27 computers are on in the computer lab.6 students turn their computers off.7 more students turn their computers off too. The teacher walks by and turns 2 of the computers back on. How many computers are turned on in the computer lab now?The answers are 16,18,17,15

Find the total area for the regular pyramid ( follow the answer set up in the picture)

Two parallel lines are crossed by a transversal.what is value of x

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 =