I don't understand your question
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12 x 16 = 192. So, the room is 192 square feet.
Answer:
13 units
Step-by-step explanation:
Use the distance formula, d =
, where (x2, y2) and (x1, y1) are two different points on the line.
Plug in the values:
d = 
d = 
d = 
d = 
d = 
d = 13
15.6 - 11.7 = 3.9
3.9 ÷ 15.6 = .25
25% of change