Describe, in your own words, what Descartes meant by his statement, “I think, therefore I am.” ?

Does anyone know the answers to k12 1.18 unit test: the power of poetry (need answers asap)all the questions are here:

Read the excerpt from the odyssey. then, throwing his arms around this marvel of a father telemachus began to weep. salt tears rose from the wells of longing in both men, and cries burst from both as keen and fluttering as those of the great taloned hawk, whose nestings farmers take before they fly this excerpt is an example of which value important to ancient greek society? hospitality generosity perseverance family ties

M read the sentence.what best describes the underlined part of the sentence,and why? alma plans to visit london and paris, where her parentswent on their first trip together as a married couple.it is a restrictive relative clause because it begins with arelative pronoun, has both a subject and a verb, and is notnecessary to the meaning of the sentence.it is a nonrestrictive relative clause because it begins witha relative pronoun, has both a subject and a verb, and isnecessary to the meaning of the sentence.it is a restrictive relative clause because it begins with arelative pronoun, has both a subject and a verb, and isnecessary to the meaning of the sentence.it is a nonrestrictive relative clause because it begins witha relative pronoun, has both a subject and a verb, and isnot necessary to the meaning of the sentence.