You will find all of the surface area of all of the sides and add them together to find the surface area of the retangular prisim. So, what I would do is the front and back are both 54, so 108. The sides are 27, so 54. The top and bottom are 18, so 36. Add them together, and you will get 198. I hope this helps.
 
        
             
        
        
        
Answer:
Sphere=2144.6
Cylinder=1693.3
Cone=2093.3
Step-by-step explanation:
 
        
             
        
        
        
So.... there are a total of 57 toys, which the new and favorites ones are not going to be sold. 
The equation would ultimately go into 57 - (15+9+2), which would equal to 31. Ultimately, he sells 31 toys and have 26 left over. 
in short, subtracting 57 with the sum of 15+9+2 would equal to 31 toys which means that he sells the 31 toys.
        
             
        
        
        
Answer:
50.29in
Step-by-step instructions:
First find the semi-circular part:- 1/2×2πr
 =1/2×2×22/7×9
 =28.29
Find whole perimeter:- 28.29+5+5+12 = 50.29 in