You go to school in a college town. you know that there are 2000 students enrolled in the school, but you don’t know the population of the town (without students). you walk up and down the main streets of the town, stop people, and ask them if they are students or not. you ask 100 people, and 60 of them say they are students. estimate the nonstudent population of the town.

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept