Answer:
cxa=t cause you are mulltipling to find the total cost
If i'm mistaken; he needs to buy 3 sheets?
Since every side of a square is the same length, and the formula to find the area is bh you would just do 2.75²
2.75×2.75=7.5625≈7.56
the answer is the area of the square is approximately 7.56u²