Ariel said that in the expression 2x + 2x2 - 6, the 2x and the 2x2 are considered like terms. Her friend, Kamika said they are not considered like terms. Who is correct? Explain why.

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