Answer:
20 square meters
Step-by-step explanation:
area = length x width
area of grass = 4 x 4 = 16
area of grass and cement = 6 x 6 = 36
<em>Now you subtract to find the area of the cement.</em>
36 - 16 = 20
 
        
             
        
        
        
First is to get the volume of the cylinder.
Volume = pi * r^2 * H
Volume = 3.1416 * (5/2)^2 * 30
Volume = 589.05 in^3
30% is already filled.
Filled Space = 589.05 * 0.30
Filled Space = 176.715 in^3
Empty Space = 412.335 in^3
Next, get the volume of the sphere.
V = (4/3)*pi*r^3
V = (4/3)*pi*(0.6/2)^3
V = 0.1130976 in^3
Number of foams = Filled Space / V
Number of foams = 176.715 / <span>0.1130976 
Number of foams = 1562 Foams</span>
        
             
        
        
        
Answer:
C ; 7 and 8
Step-by-step explanation:
The correct question is as follows;
On a number line, between which two consecutive whole numbers would 7.8 be located?
Solution 
Here, we want to know between which consecutive whole numbers will 7.8 be located .
As we know, 7.8 is a decimal, it is same as 7 + 0.8
It is greater than 7 but less than 8;
Thus it is between 7 and 8
 
        
             
        
        
        
Answer:
I don't know it's very hart