Answer: 20 + x
Why you ask? Well its just plain logic if you read it thoroughly
3.2=x______________________________
What square? Seems like you forgot to add a picture
The surface are would be 81 bc the base area is 9 and you have four triangles with the area of 18. Add them all up and you get 81
About A. 25 grams because glasses are really not heavy at all and the other options are way too illogical.
Hope this helps!