Answer:

Step-by-step explanation:
can be simplified to:

Make them have common denominators so:

Simplify:

I don't think you can simplify that fraction further so that's the answer.
Answer:
A cylinder's volume is π r² h, and its surface area is 2π r h + 2π r².
23% is maybe the percentage but if not then it maybe a little higher or lower
There isnt a picturee but when you add another question I will hep you the best I can :)