What is the domain of this function

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

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

I’m really confused and need to learn this