An unbiased coin is tossed 20 times find the probability that the coin lands heads exactly 11 times

What is the base of 1/9 to the power of 2

How do newtons third law of motion demonstrates on a rollar coster

Allen's goal is to have between 1,500 and 1,600 bottles in his collection. write and solve a compound inequality to determine the number of weeks it will take allen to reach his goal. show your work. *