I REALLY, REALLY NEED HELP. I'll send a screenshot of my problem, so please help me out

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

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