Answer:
3.
Step-by-step explanation:
Divide the day price by the week and round down. 
You get like 3.45, so 3. 
<em>hope this helps :)</em>
 
        
                    
             
        
        
        
Answer:
   80 m^2
Step-by-step explanation:
The given information lets you write two equations involving length (x) and width (y).
- 2(x +y) = 36 . . . . the perimeter is 36 m
- (x+1)(y+2) -xy = 30 . . . . increasing the length and width increases area
The second of these equations simplifies to another linear equation, giving a system of linear equations easily solved.
   xy +y +2x + 2 -xy = 30
   2x +y = 28 . . . . . . . subtract 2
Dividing the first equation by 2 gives
   x +y = 18
and subtracting this from the above equation gives ...
   (2x +y) -(x +y) = 28 -18
   x = 10
Then
   y = 18 -10 = 8
The area of the original rectangle is xy = 10·8 = 80 m^2.
 
        
             
        
        
        
Answer:
2664.3
Step-by-step explanation:
The volume of a sphere is 
V = 4/3 πr³ 
Multiply the radius (which is the diameter divided by 2), 8.6 by itself 3 times, and them multiply it by pi and 4/3 to achieve a volume of 2664.31 or aproximatley 2664.3.