First, we have to find the area of the wall, then the area of the window, then subtract them.
Area of wall = 9 × 9 = 81 sq.unit
Area of window = 3 × 3 = 9 sq.unit
So, the area of the wall ( excluding window ), = 81 - 9 = 72 sq. unit
Given,
We know that, 
= 112.
Imagine 1000 is multiplied to numerator and denominator.
Then, we have
= 
So quotient will be 2000
Answer:
this is not an answer sorry, but someone answered me with a link and I opened it and it virused my phone
Answer:
0.25s + 6.2
Step-by-step explanation:
Discount on sale expression : 1/4(s + 24.80)
Retail price of shoe = s
Retail price of hats = 24.80
From expression, we can conclude that there is a ; 1/4 = 0.25 = (0.25 * 100%) = 25% discount on each item ;
Hence, discount expression could be written as :
0.25s + 0.25(24.80)
0.25s + 6.2
