First you have to know how many inches are in a square cm and then the answer that you get for that first part you just multiply that by what you have but dont use a calcutor cause it wont give you the right answer because i had this before and i got it correct
No because the sum could also be irrational number which for example it could be square root of 9 or 49
Hope this helps answer your question
The answer is C. 20. Hope this helps!
