Please help! will give brainliest

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

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