Nikki is updating her house with hardwood floors. She has a maximum of $8,400 to spend. The minimum amount she can spend if she buys the cheapest hardwood flooring is $7,200. She needs enough flooring to cover 1,200 square feet. The cost for labor and other materials is $3,600. The mequality representing this situation is 7200 < 1200x + 3600 and 1200x + 3600 < 8400. What is her price range per square foot for flooring pannels?​