Can someone answer these questions for me?

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

What is the scale factor of axyz to auvw?