Answer:
1. 44 + 3x
2. 2y - 8
3. x - 6
15. 
16. 
17. 
Step-by-step explanation:
1. 7² + 2² - 5 - 4 + 3x
    49 + 4 - 5 - 4 + 3x
        53 - 5 - 4 + 3x
            48 - 4 + 3x
               44 + 3x
2. - y - 5 + y + 2(2y-y) - 3
      -y - 5 + y + 4y - 2y -3
       -y - 5 + 5y - 2y - 3
           4y - 2y - 5 - 3
                  2y - 8
3. 5x -3 - x - 3(x + 1²)
     5x - 3 - x - 3x - 3
       4x - 3x - 3 -3 
            x - 3 -3 
              x - 6
15.   
 
    =  
 
    =  
 
    =  →
 → 
16.  
    = 
    = 
    =  →
 →  →
 → 
17.  
    =  
    =    
    =      →
 → 
Hope this helps.
 
        
             
        
        
        
Answer:
For option A she would receive $1,690. For house B, she would receive $2,070 for a weeks worth of pay. 
Step-by-step explanation:
Please mark Brainliest if this helped :)
 
        
             
        
        
        
B. 3 √3
The shortcuts for a 30 60 90 triangle is that the:
Hypotenuse is 2 times the short leg
The long leg is √3 times the short leg. 
Making it 3 √3
Another way is by the Pythagorean Theorem. 
a^2+b^2=c^2
3^2+b^2=6^2
9+b^2=36
Subtract 9 from both sides 
b^2=27
Square root both sides 
b=5.2 or the √27
√27 can be simplified more
An equation that equals to 27 that has a perfect square is 9*3
√9* √3
The perfect square of 9 equals to 3
So 3 √3
        
             
        
        
        
James will need 115.08mg of medicine at the start of day 6.