I don’t know how to answer this, photo is attached.

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.

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?