In a bag of balls, 3 are yellow, 4 are blue, 6 are green, and 2 are red. Kay picks 30 balls from the bag, replacing the ball into the bag each time. How
many times would you expect a green ball to be picked?

Which of the following questions describes the equation g + (-4) = -5? a)what number, when added to negative four, is equal to negative five? b)what number, when added to negative five, is equal to negative four? c)what number, when subtracted from negative four, is equal to negative five? d)what number, when subtracted from negative five, is equal to negative four?