Let a represent a non-zero rational number and let b represent an irrational number

What are potential hypotheses (explanations) regarding why there are ecological equivalents between many metatherians and eutherians? discuss your hypothesis in terms of the processes that could lead to the current ecologies and distributions of metatherians and eutherians.

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.