What did westerners think about the compromise of 1850

The Compromise of 1850 was made up of five bills that attempted to resolve disputes over slavery in new territories added to the United States in the wake of the Mexican-American War (1846-48). ... Lingering resentment over its provisions contributed to the outbreak of the Civil War.

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.