Answer:
x = 10
y = 6
Explanation:
If ∆ABC is congruent to ∆GEF, therefore their corresponding side lengths would be equal to each other. Thus:
x - 8 = 2 (corresponding sides of both triangles are equal)
Add 8 to both sides 
x - 8 + 8 = 2 + 8
x = 10
Also:
x - y = 4 (corresponding sides of both triangles are equal)
Plug in the value of x
10 - y = 4
10 - y - 10 = 4 - 10
-y = 4 - 10
-y = -6
-y/-1 = -6/-1
y = 6
 
        
             
        
        
        
Answer:
Water
Explanation:
Acetone has a higher vapour pressure than water because acetone molecules only experience dispersion forces and diploe interactions as the dominant intermolecular forces.
In addition to these mentioned, water molecules are held together by strong hydrogen bonds. Therefore, water has a much lower vapour pressure than acetone and requires greater energy to break these hydrogen bonds and convert the liquid water to gaseous state.
 
        
             
        
        
        
$15 by 2.60 times 4.5 is 11.7 and 11.7 plus 3.30 is 15