Mikayla is the communications director for a politician and has recommended that a total of 41 speaking events are given by the politician before election day. Each speaking event is either a formal speech or an informal talk. Mikayla also recommends a total of 9 more formal speeches than informal talks. Which of the following systems of equations can be used to find out the number of formal speeches s versus the number of informal talks t?

What kinds of antigens are found on the rbcs of a person with a+ blood

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.

It takes longer to fly an airplane against a with it