The answer will be 53/135, or in decimal form, 0.39259259...
        
             
        
        
        
1.94
Divide 7.76 by 4 to get the cost of each glue stick
        
             
        
        
        
8. You would take 48 (white tiles) then divide it by 6 to get 8. (Grey tiles)
        
             
        
        
        
A) Ang 1 + Ang 2 = 90
B) Ang 1 = Ang 2 + 20
B) Ang 1  -Ang 2 = 20 then adding this to equation A produces
2 Ang1= 110
Ang 1 = 55 degrees
Ang 2 =35 degrees