M∠AOC=104 ∘
m, angle, A, O, C, equals, 104, degrees
\qquad m \angle AOB = 7x + 30^\circm∠AOB=7x+30
∘
m, angle, A, O, B, equals, 7, x, plus, 30, degrees
\qquad m \angle BOC = 9x + 42^\circm∠BOC=9x+42
∘
m, angle, B, O, C, equals, 9, x, plus, 42, degrees
Find m\angle BOCm∠BOCm, angle, B, O, C:

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."

What does x = in this equation x+3+2x=x+5

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)