A teacher randomly selects students to write the date on the board each day. If there are 12 boys and 9 girls in the teacher’s class, what is the probability the teacher chooses a girl to write the date on the board? 1 over 12
1 ninth
3 sevenths
3 forth

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

How many ordered pairs of positive integers satisfy xy=32?

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?