Brooke is trying to take her test, but she keeps forgetting information and getting distracted. which poor habit is likely to blame for her problems?

1.she arrived late to the test.
2.she didn't eat breakfast.
3.she missed a class the week before.
4.she didn't use flash cards to quiz herself.

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