Answer:
95
Step-by-step explanation:
G(6)=3(6)^2-2(6)-1
 =108-12-1
 =95
 
        
             
        
        
        
Answer:
Sports players: For people that need high respiratory performance, rises in the pressure may difficult the things, so they would be affected by high pressure because this makes breathing a little bit harder.
Workers in construction and such: People that work a lot with their muscles, in heat environments (road workers, construction workers) may be affected by the same problem as before, and this makes the workers to exhaust in a shorter time than if they worked in a lower pressure environment. 
Scientist: A lot of time, some experiments or investigations need a specific pressure to work, so changes in weather pressure may affect investigations, and because the changes are actually uncontrollable, the scientist are really affected by them. 
 
        
             
        
        
        
I would think A because regular quadrilaterals have 90-degree angles.