Birds have a number of successful adaptations, including migration, memory, and problem-solving. migration allows birds to have the resources they need year-round. they can use their excellent memories to find food stashes and nesting spots. some birds can even make their own tools to get food. which sentence best concludes the paragraph? birds have a better memory than humans. birds deserve more respect than they usually get. birds migrate to find food. birds have developed effective skills to survive.

racism is the belief in the superiority of one race over another, which often results in discrimination and prejudice towards people based on their race or ethnicity. the use of the term "racism" does not easily fall under a single definition.

explanation:

it wants you to read whatever it gave you. then compare it to the others you read. you need to use textual evidence, and cite anything you do!

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~courtney

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4

it is a hope this 's