The rectangle on the right is a scaled copy of the rectangle on the left. identify the scale factor. Express your answer as a whole number or fraction in simplest form

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?

Suppose 38 lbs of coffee beans are required to produce 2 lbs of farmer's coffee. how many lbs of coffee beans are required to produce 309 lbs of farmer's coffee?

If f (x) = 2x2 +5/(x-2), complete the following statement: f(6) =