You and your friend are selling tickets to a charity event. you sell 7 adult tickets and 16 student tickets for $120. your friend sells 13 adult tickets and 9 student tickets for $140. what is the cost of a student ticket?

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