Answer:
12
Step-by-step explanation:
since tile B is a regular polygon means it is an equilateral triangle. The angle inside B would be  60.
(360 - 60)/2 = 150 (interior angle of tile A)
180 - 150 = 30 (exterior angle of tile A)
therefore number of sides = 360 /30 = 12 
 
        
             
        
        
        
14f + 7
“Product” means multiplication, so we can assume 14 and f are being multiplied (14f.) Add that to 7, and you have an expression! Have a great day.
        
             
        
        
        
Answer:
Simplified the expression.
y2x+5y−5yx−25  
I think this is what were were asking, if not please explain better. 
Hope this helps :D
plz like & brainly
 
        
             
        
        
        
I think its C) bc you would take 3.14 x4= 12.56