Nathan has a points card for a movie theater. He receives 40 rewards points just for signing up. He earns 14.5 points for each visit to the movie theater. He needs at least 225 points for a free movie ticket. What is the least number of visits he needs to make in order to earn a free movie 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