Consider quadrilateral CREB made up of squares COAB and OREA, where AE=4. Assume squares COAB and OREA are congruent. Determine the values of M and N and the length of RB in the quadrilateral CREB.

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