Julie is tired of picking up her five-year-old son's toys every day. She has decided to use operant conditioning to train him to pick up his own toys. Her friend recommends the use of primary positive reinforcement.
Which of the following BEST describes a way Julie could use primary positive reinforcement to encourage her son to
pick up his toys?

answer; i believe the correct answer is (child care provider);

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11