How do you solve it and what is the answer

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

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?

Find the value of x. give reasons to justify your solutions! h ∈ ig