Select the correct answer A school bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and S students from the second grade travel in the bus. How
many ways can the students be seated if all of the second-grade students occupy the first row?
OA SP20
OB. Ps x 20P
OCCH
OD. SPS SPS
OE Ps 2.C

In the diagram below, dab and dac are adjacent angles. if mdac = 25°, what is mdab in degrees? what is mbac in degrees?

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."

How do i do this activity, is appreciated