i think it would be a again im not so sure.
Answer:
In 1829 Mexico abolished slavery, but it granted an exception until 1830 to Texas. That year Mexico made the importation of slaves illegal.
-15e+7-5e-9
For get about the - sign and add the 15 and 5
Then place the -sign back
Add 7 to the -9
-20e-2
Both Spain and Portugal build colonies in the America through violence conquest and colonization--using both weapons and diseases to eliminate large number of the native population. <span />
<span>They started working to gain the right to vote.</span>