Solve for x.
X-20
140°

Answer this asap. why did the americans go to china? a. trading b. exploration c. land d. live stock

Fossils of glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? check all that apply.

Which of the following best describes the circumstance under which countries block the importation of certain products into their country? a. importation blockade b.trade barrier c.trade inhibitor d. domestic protection act