3a =18
3a/3 = 18/3
a = 18/3
a = 6
Hope this helps
        
                    
             
        
        
        
Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that 
the optimized solution of a linear program to an integer as it does not affect the value of the objective function.
As if we round the optimized solution to the nearest integer, it does not change the objective function .
while it is not true that it always produces the most optimal integer solution or feasible solution.
Hence, Option 'c' is correct.
 
        
             
        
        
        
The most common way to raise the pH of soil is to add pulverized limestone to the soil. Limestone acts as a soil acid neutralizer and consists of either calcium and magnesium carbonate or calcium carbonate. These are called dolomitic limestone and calcitic limestone respectively.
 
        
             
        
        
        
Answer:
The time you have before finance charges are assessed is called the Grace period
option-D
Step-by-step explanation:
we know that 
Grace period is the extra time given to customer to pay amount before finance charges 
But once grace period passes , customer will have to pay extra fee or penalty with interest with passing days
So, 
The time you have before finance charges are assessed is called the Grace period
So, 
option-D
 
        
             
        
        
        
D because it can't be unique since many triangles can share these characteristics. It can't be more than one triangle and the triangle is possible.