Use benchmarks to estimate 16.18 minus 5.94

The mathematical expression 9€ t means

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 =

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r