Please find the surface area.

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?

Nine more than four times a number is the same as one less than twice the number. find the number?

Two consecutive negative integers have a product of 30. what are the integers?