Answer:
20: 0.2
48: 0.48
8: 0.667 
I hope that answers your question and it's right!! :) 
 
        
                    
             
        
        
        
Answer:
Option (4).
Step-by-step explanation:
Formula to calculate the volume of a cylinder is,
V = πr²h
Here r = radius of the cylinder 
h = Height of the cylinder
From the figure attached,
r =  cm
 cm
h = 11 cm
Now we substitute the values of h and r in the formula,
V = π(6.5)²(11)
    = 464.75π
    = 1459.32
    ≈ 1459.3 cm³
Therefore, volume of the given cylinder is 1459.3 cm³ 
Option (4) will be the answer.
 
        
             
        
        
        
Answer:
120
Step-by-step explanation:
5!
=5×4!
=5×4×3×2×1
=120
 
        
                    
             
        
        
        
Answer:
225
Step-by-step explanation:
The sum of this series is given by the formula:
![S_n=\frac{n}{2}[2a+(n-1)d]](https://tex.z-dn.net/?f=S_n%3D%5Cfrac%7Bn%7D%7B2%7D%5B2a%2B%28n-1%29d%5D)
Where 
S_n is the sum
a is the first term (we get this by plugging in n = 1 into "2n-1", we have 2(1) - 1 = 1)
n is the number of terms (the sum is defined for n = 1 to n = 15, so 15 terms)
d is the common different (the difference is successive terms. Here, 2nd term would be 2(2) - 1 = 3, and first term was 1, so d = 3 -1 = 2)
<em>plugging in the info, we will get the sum:</em>
<em>![S_n=\frac{n}{2}[2a+(n-1)d]\\S_{15}=\frac{15}{2}[2(1)+(15-1)(2)]\\=225](https://tex.z-dn.net/?f=S_n%3D%5Cfrac%7Bn%7D%7B2%7D%5B2a%2B%28n-1%29d%5D%5C%5CS_%7B15%7D%3D%5Cfrac%7B15%7D%7B2%7D%5B2%281%29%2B%2815-1%29%282%29%5D%5C%5C%3D225) </em>
</em>
<em>The sum is 225</em>
 
        
             
        
        
        
Answer:
$468.75
Step-by-step explanation:
52 packages = $195
125 packages = ?
125 x (195/52)
= 125 x 3.75
= 468.75