What fraction of the states in both houses of congress are required to amend the constitution?

From which of the following literary works is this quotation most likely taken?

Match each model with its name and the name of the scientist who created it.

What event ensured england safe passage to colonize north america? a) many englishmen desired more religious freedom than the king allowed.b) england's government decided to take advantage of america's wealth of resources.c) england's defeat of the spanish armada in 1588 opened up the seaways.d) cabot claimed the north atlantic coast for england in 1497.