Anyone able to help me 15 points up for grabs for anyone who can help

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?

Which of the following is the true for f(x) = 5cos

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?