1.The central angle between two radii of a circle is 80 degrees. If the radius of the circle has a length of 6 inches, what is, in terms of pi, the area of the sector that contains the angle?

What value of x is in the solution set of –5x – 15 > 10 + 20x?

The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?