Answer please and thanks

What are the adjectives in this sentence? our ancient car has became very unreliable recently,so we are trying to find a cheap replacement .

Which passage from kennedy's inaugural address is an example of an allusion? to our sister republics south of our border, we offer a special pledge-to convert our good words into good deeds-ir new alliance for progress but this peaceful revolution of hope cannot become the prey of hostile powers a call to bear the burden of a long twilight struggle, year in and year out, rejpicing in hope patent in tribulation it a free society cannot the many who are poor, it cannot save the few who are rich

According to warren in the brown opinion, how did conditions change between the time the fourteenth amendment was adopted and the time the supreme court considered brown v. board of education?