Answer:
i can help
Explanation:
Spanish is my 1st language
 
        
                    
             
        
        
        
Because I do not know the context of what is "cool," I am going to assume that is referring to the weather/temperature. 
In Spanish, we use the verb "hacer" in expressions that refer to weather conditions. 
The direct translation of "It is cool," is:
Hace fresco.
We use the third singular form of the verb hacer because we are talking about the weather. 
        
             
        
        
        
Estudian (present) 
Estudiaron (past)