Bob and his best friend bill have the same birthday, but bob is 3 years older than bill. let the variable x represent bob’s age and y represent bill’s age. which equation models the relationship between bill’s age and bob’s age?
a. y = x/3
b. y = x + 3
c. x = y + 3
d. y = 3x
is the statement true or false? (ab)c = a(cb).
a. true
b. false

If 20% of a number is 35, what is 50% of that number?

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."

Me find the value of x each figure.