Calculate the area of a sector of a circle that subtends an angle of 45° at the center of the circle, radius 14cm a) 11cm² b) 77cm²
c) 25cm² d) 56cm²

Abag contains 5 red marbles , 6 blue marbles and 4 green marbles. susie selects a marble and returns it to the bag before selecting another marble. if susie selects a red marble 6 out of 20 times, what is the experimental probability that the next marble she selects will be a red marble ?