5 is 3 because it is true
6 is i beleive 1.
My answer is A()subtraction because didnt egyptians invented a system of mathematics???
Answer:
yes it is mercantillists is a foreign trade
Answer:B
Explanation:The cotton gin made it easier to clean cotton so more cotton less value.
Bradley is watching his twin daughters play on a playground seesaw, and is fascinated by the way only one side can be up or down at a time. He thinks about color vision, and recognizes that this is similar to how the opponent process theory describes his ability to see just one color of a color-pair at a time.