Simplify the expression with only positive exponents:

Write the equation for a line going though points (4,35) and (9,60) in slope intercept form. *Note: Write as “y=3x+5” (no spaces)

Which group of animals were probably the first land animals?  What features made this group pre-adapted to life on land?

The presence of Stromatolites in the early Triassic indicates  _____________________.  

What is the Biotic interchange?  What plate tectonic event cause it?

How did the development of jaws allow vertebrates to expand in diversity?

During the Late Silurian the Michigan Basin was characterized by thick Salt deposits.  By what process(es) might have this salt formed?

 The Cenozoic can be divided into two parts based on climate.  What are these parts and what plate tectonic event(s) contributed to changes?  

Which group of plants were dominate in the early Mesozoic?  Which group replaced them during the Cretaceous and how might that have affected the animals?

What event marks the end of the Mesozoic and what are some possible causes of it?