In the expansion of (3x^3 + 4x) (2x^2 5), what is the coefficient of x^3?

Solve the equation. 2x - 8(x+1)= 6(2x - 3)

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

How is the interquartile range calculated?