Respuesta :

Answer:

Step-by-step explanation:

Answer to Part A:  This square window measures x²in².

Answer to Part B:  If side of this square window is 20", the replacement window will have dimensions 20" by 20", which comes out to 400 in²,

or

400 in²

----------------- = 2.78 ft²

 144 in²/ft²

Part C:  Stephanie cannot pay more than $100 for the replacement window.  As she would have to replace 400 in², the max she could pay per in² of material would be

 $100

----------- = $0.25/in².

400 in²

The max unit rate S. could pay for the replacement window wouldbe $0.25/in².