This is how you do it hope this helps.
Answer:
Step-by-step explanation:
I think its a normal 7 and a normal 3 then a -4 and a -9 and a -10
I would be guessing that since the square is 4ft squared I would imagine that it would have 2ft per side. That would mean 24inches per side. 24×4= 96inches.
96 tiles is what she needs. I am a little confused myself, hope this helps