A recipe calls for 3/4 of a cup of flour to make 5/8 of a pound of bread dough. How many cups of flour are needed to make 1 pound of dough?
Show your work and write your answer 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?