Can any one be my friend

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?

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?