Answer:
100/3
Step-by-step explanation:
 
        
                    
             
        
        
        
→ Solutions
⇒ Simplify <span><span><span>4<span>(<span>2a</span>)</span></span>+<span>7<span>(<span>−<span>4b</span></span>)</span></span></span>+<span><span>3c</span><span>(5)</span></span></span><span>⇒ </span><span><span><span><span><span>8a</span>+</span>−<span>28b</span></span>+<span>15<span>c
Answer 
 </span></span></span></span><span>⇒ </span><span>8a−28b</span><span>+</span><span>15c</span>
        
                    
             
        
        
        
Step-by-step explanation:
m1.m2= -1
(4y = -2x -9)= (y = -1x/2 -9/4)
-1/2.m2= -1
m2 = 2
formula = y - y1 = m2 ( x - x1)
y - 10 = 2 ( x - (-7))
y - 10 = 2x + 14
y = 2x + 24
 
        
             
        
        
        
17: 900 because 3,000 + 900 + 40 +7 is 3,947 or 3,947-3,000-40-7= 900
        
                    
             
        
        
        
Answer:
49
Step-by-step explanation:
(3+2²)²
(3+4)²
(7)²
49