A circle is shown. Chords Q S and R T intersect at point A. The length of Q A is 9, the length of A S is 4 x, the length of T A is 12, and the length of A R is x + 2. What is the length of the shorter of the two chords shown?

How many degrees does the hour hand move from 3: 00 to 5: 30?

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?

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs