Answer:
y = 10
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin30° =  , then
 , then
sin30° =  =
 =  =
 =  ( cross- multiply )
 ( cross- multiply )
2y = 20 ( divide both sides by 2 )
y = 10
 
        
             
        
        
        
Well let’s make it a decimal. 
.75 = .84 + Y
So if .84 is more than .75 then subtract 
.75 from .84 and you have your answer then convert to fraction
        
                    
             
        
        
        
Just took the test, the answer is C.
:)
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation). ... When the pressure exerted on a substance increases, it can cause the substance to condense.