Tiffany wanted to drink exactly 31 bottles of water each day, so she bought 679 bottles when they were on sale. how many more bottles will she need to buy on the last day?

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