A box contains two red balls and four blue balls. A ball is drawn at random from the box and then replaced before a second ball is drawn. Find the probability of drawing two red balls.
Which one of the following gives the members of the set A1 n B n C?
Calculate the area of an equilateral triangle of side 8cm
Simplify 25\(^{(\frac{1}{2}}\) × 8\(^{(\frac{-2}{3}}\)