Mali was unlike Ghana in that O Mali had a gold-salt trade
O Ghana rejected Islam
O Mali was a center of Islamic learning
Ghana had almost no trade

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.  

answer: andrew johnson

17th u.s. president

in what way were president abraham lincoln's and president andrew johnson's reconstruction plans similar? a)both reserved seats in the congress for former confederate war leaders. b)both granted voting rights to the newly freed slaves. d) both required southerners to support the thirteenth amendment to abolish

explanation:

i believe out of the choices it is a.

you would want to choose the to make treaties