Estimate 12.32+7.636 by first rounding each number to the nearest tenth. pls help need the right answer thank u

Mexican independence the revolution for independence from spain was started by a pries name

How did the invention of the cotton gin affect slave labor in the united states? a. there was a forced migration of slaves from the south to the north. b. slave-owning cotton planters were gradually forced to sell their plantations. c. more slaves were purchased to work on cotton plantations in the south. d. the reduced need for labor on cotton plantations led to a decline in slavery. e. slaves were moved from cotton plantations to sugar plantations.

Why might it be important to know a currency’s exchange rate