What is the perimeter of a square with side length 13.4 inches

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

The amount of energy it takes to lift a box might be a function of which of the following

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?