Which statements are true of the function f(x) = 3(2. 5)x? check all that apply. The function is exponential. The initial value of the function is 2. 5. The function increases by a factor of 2. 5 for each unit increase in x. The domain of the function is all real numbers. The range of the function is all real numbers greater than 3.

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.