4students spent twelve dollars. what is the amount 10 students would spend?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Which of the following shows the length of the third side, in inches, of the triangle below

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