What are the domain and range of the step function below PLEASE HELP LEST TEST OF CLASS NEED ASAP ANSWER WILL GET 30 points

Beth makes batches of bluberry muffins and banna muffins. each batchis 6 muffins. she makes 2.5 batches of bluberry muffins. how many batches of bananna muffins should beth make if she wants to have a total of 60 muffins?

What percent of the circle below is shaded?

Consider the function f(x)=-5x+3 what is f(-2)