Answer:
X = > 12 because 15 - 3 = 12 and if X was more than 12 it would be wrong.
Step-by-step explanation:
I think the answer is 400 square centimetres
A) if they are counting all 7 days in the week then $250
b) again all 7 days ? $1050
c) 7 days ? they would be losing $70 a day