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Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.