What did the louisiana purchase of 1803, the annexation of texas in 1845, and the us-mexican war of 1846 have in common?

Lots of points: economics: a rise in price sends a signal to producers to supply. a. reduce b. increase c. maintain d. stop

Which of the following most likely contributed to the outbreak of world war ii? a. embargoes on international trade b. higher tariff rates in european countries c. sanctions imposed by the united states d. global economic depression

On the map above, what is the name of the island to the west of letter b?