Describe the error the student made below:

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?

In which form is the following function written? y = - 2(x – 3)(x + 5)

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle