Answer:
39 buses
Step-by-step explanation:
2,106 ÷ 54 = 39
 
        
             
        
        
        
Answer: 24.6 inches
Step-by-step explanation: Since it's a rectangle, and not a rectangular prism, that means it's 2D. Length is the long sides on the top and bottom, and width is the shorter sides on it's left and right. So since there's two of each, just do 8.1 + 8.1 + 4.2 + 4.2 and you have your answer!
 
        
             
        
        
        
Okay, 
Radius, is half of the diameter. 
Diameter, is the line that splits the circle in half.
1). R=50 D=100
2). R=10 D=20
3). R=5   D=10
4). R=29 D=58
5). R=11 D=22
6). R=31.5 D=63
7). R=45 D=90
8). R=7   D=14
9). R=49 D=98