10. define supply and demand.

Supply is the amount of an item available.

Demand is the want or need of that object.

So when there is a high demand for something, like a new phone, then manufacturers will try and supply that demand.

When there is a low supply and high demand, prices increase and vice versa.

I hope this helps! :)

explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.