31=6.2xy solve the equation​

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?