Find the student’s error in solving the following inequality. 2 < –3x –4 < 5 6 < –3x < 5 –2 > x > –5/3 The student should have added 4 to all parts (left, middle, and right) to get 6 < –3x < 9. The student divided 6/–3 incorrectly. The student should not have switched the direction of the sign in the final step.

Snakes, dogs, and humans have a vertebral column. snakes and dogs have tails, and humans have vestigial tailbones. dogs and humans have limbs, but snakes do not. most reptiles lay eggs, but a few give birth to live young. what do these structures suggest about the evolutionary pattern between the three organisms? 1. snakes and dogs are more closely related than snakes and humans. 2. snakes and humans are more closely related than humans and dogs. 3. dogs and humans are more closely related than snakes and humans. 4. dogs, snakes, and humans share a common ancestor. 5. the early ancestor of snakes and dogs is the same, and the early ancestor of humans is different.