Which pair of expressions is equivalent? A) (4 x 3) x 2 and 4 x (3 x 2)
B) (2 + 4) * 3 and (2 x 4) + 3
C) 3x (4 - 2) and (3 x 4) - 2
D) (4 + 3) x 2 and 4+ (3 x 2)

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

What is the area of the trapezoid shown ?

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.