How do i do this problem
8 12/21 +25 5/8 + -31 3/14

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?

Evaluate the expression. (9 + 5)(3 + 2)0

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3