The leaders in Africa wanted guns but the
slaves themselves wanted guns to protect
themselves from being captured and sold into slavery. All the guns were being sold by EU and Americas.
I think the answer is diminishing marginal utility
Answer:
an invention. the assembly line. Henry Ford made it popular but some one else created it
The expansion of the railroads in the late 1800s was instrumental in helping the US economy boom. It did this in two ways. First, the railroads created a tremendous amount of demand for goods and labor on their own. As the railroads were being built, they needed huge numbers of people to build them.
Explanation:
Canberra is the only one of those cities that is not coastal.
