Can someone help me please 30 points​ step by step

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

If value of cos330° is √3/2 then find tan165°.

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so