A fish was swimming 2 1/2 feet below the water’s surface at 1:00 p. m. Three hours later, the fish was at a depth that is 3 1/4 below where it was at 1:00 p. m. What rational number represents the position of the fish with respect to the water’s surface at 4:00 p. m.?

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?

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120