Need help offering lots of points to help me with these questions

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?

Having a hard time understanding this question (see attachment).

3c2 + 2d)(–5c2 + d) select all of the partial products for the multiplication problem above.