Which of the following equations have exactly one solution? choose all answers that apply: choose all answers that apply: (choice a) a -5x+12=-12x-12−5x+12=−12x−12minus, 5, x, plus, 12, equals, minus, 12, x, minus, 12 (choice b) b -5x+12=-5x-12−5x+12=−5x−12minus, 5, x, plus, 12, equals, minus, 5, x, minus, 12 (choice c) c -5x+12=5x+12−5x+12=5x+12minus, 5, x, plus, 12, equals, 5, x, plus, 12 (choice d) d -5x+12=5x-5−5x+12=5x−5

Akitchen floor is made up of tiles that are in the shape of the triangle shown there are 40 tiles on the kitchen floor what is the total area of the floor

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."

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.