Se pagaron $528.000 (Quinientos veintiocho mil pesos) por la compra de 64 libros de matemáticas para la biblioteca del colegio. Si todos los
libros costaban lo mismo;
¿Cuánto costó cada libro?

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.

Need on this geometry question. explain how you did it.

If you answer 2+2 you will get over 80 points