3 differences between amazon and orinoco river basin

What is the missing step in solving the inequality 5 - 8x < 2x + 3?

Which evidence is most likely used to indicate the beginning of solar system formation? a. materials combined to form a mass. b. materials were pulled together by gravity. c. water condensed and collected to form oceans. d. different species of microorganisms lived on earth.

How does central place theory explain patterns in the size and distribution of cities?