Answer:
first - 25 degrees, second - 65 degrees
Step-by-step explanation:
 
        
                    
             
        
        
        
18x+9xy   (9x⋅2)+(9x⋅y   <span>(9x⋅2)+(9x⋅y  You multiply 9x times 2 and then 9x times y.  Because a(b+c) = ab + ac</span>
        
                    
             
        
        
        
 Hillary spent a total of 275 minutes studying for his Final.
What is unit conversion ?
When a unit conversion is performed, the same property is expressed in a different unit of measurement.
Here it is given that :
Hillary spent a total of 4 hours and 35 minutes studying for her Final 
We known that :
1 hours equals 60 minutes 
then, 
4 hours and 35 minutes will be equals to = 4x60 + 35 
                                                                     = 240 + 35
                                                                     = 275 minutes 
Therefore, Hillary spent a total of 275 minutes studying for his Final.
Learn more on conversion of units here;
brainly.com/question/340715
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The answer is 20 
Your welcome
        
             
        
        
        
The side of the square is 4 cm since 4x4= 16