Answer:
$2
Step-by-step explanation:
40 x 0.05 = 2
 
        
             
        
        
        
Answer:
4 * 10^6
Step-by-step explanation:
3,796,742 is about 4,000,000
4 * 10^? = 4,000,000
4 to 4,000,000 is an extra 6 zeroes
? = 6
4 * 10^6
 
        
             
        
        
        
Answer:
Option A)

Step-by-step explanation:
We are given the following in the question:
V varies jointly as h and the fifth power of r.

Combing the two equations, we get,

Now, removing the sign of proportionality and adding the constant of proportionality, we get,

where k is the constant of proportionality.
Thus, the correct answer is 
Option A)
