Answer:
solution 
here,
<h3>the power of route 216 of 6 is 6to the power 3</h3>
 
        
                    
             
        
        
        
It is substitution. Because you are substituting 3=y into x+5=3
        
             
        
        
        
Answer:
<h3>p = 131.25</h3>
Step-by-step explanation:
The variation p varies directly with T is written as
p = kT
where k is the constant of proportionality
To find p when T =500 we must first find the formula for the variation
That's
when p = 105 and T = 400
105 = 400k
Divide both sides by 400
<h3>

</h3>
So the formula for the variation is
<h2>

</h2>
when 
T = 500
Substitute it into the above formula
That's

Simplify
The final answer is
<h3>p = 131.25</h3>
Hope this helps you