How did the Roman's treat the people whom they conquered

Rome treated its conquered lands with justice. Conquered people had to acknowledge Roman leadership, pay taxes, and supply soldiers. Rome let them keep their own customs, money, and local government. ... Others became partial citizens, which meant they could marry Romans and carry on trade in Rome.

Explanation:

the answer is: must pay taxes on profits

since it is considered as a part of your income, profits from investments is eligible for tax payment.

the tax from your investment could be influenced by how long you decided to sell it. united states promotes keeping your investment for long term period. so, the tax rate for investments that you sell in less than one year is typically higher compared to investments that you sell in more than one year period.