Evaluate the algebraic expressions for the given values of each variable.
r + s2 at r = 4, s = 1
i think it's 6 ,am i correct?

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 =

What is the absolute value of the complex number -4-sqrt2i

What is the circumference of the pie