In gallup's annual consumption habits poll, telephone interviews were conducted for a random sample of 1014 adults aged 18 and over. One of the questions was "how many cups of coffee, if any, do you drink on an average day?" the following table shows the results obtained (gallup website, august 6, 2012).

What is the missing step in this proof? scroll down to see the entire proof. u

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.

How do you work out 21.3-8= show your working. plz