H^3+3h^2x+3hx^2+x^3 should be the answer
        
             
        
        
        
Do a ratio tall over shadow. How tall is tree / shadow. How tall is person / shadow then cross multiply. X/7.5 =5/3. 37.5=3x. Divide by 3 answer 12.5
        
             
        
        
        
Answer:
<h2>k = 7</h2>
Step-by-step explanation:

 
        
             
        
        
        
Answer:
-19
Step-by-step explanation:
1) substitute a with 2 and b with 5 
(3 + 2)^2 * (4-5) + √36
2) solve the brackets and the square root 
(5^2) * (-1) + 6 
3) solve the power 
25 *(-1) + 6 
4) solve the multiplication 
-25 + 6 
5) solve the sum 
- 19 
 
        
             
        
        
        
Answer:
im a a monkey
Step-by-step explanation: