What is the answer to -6=-7-n/10

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

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?

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area