Step-by-step explanation:
a÷b=960÷89=10.78651685=10.79 or 17.8
 
        
                    
             
        
        
        
It is my unprofessional opinion that the answer will be c.
my reasoning is because Lisa is asking for a percentage from a set amount<span />
        
             
        
        
        
Answer:  2
 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Radius =  r = 7.5
Diameter = d = 15
Circumference = C = 15π
Step-by-step explanation:
We are given the image of a circle with a straight line passing through the center of the circle and touching its edges. Such a line is known as the diameter of the circle. From the image we can see the length of the diameter of the circle is d = 15 units.
Radius is define as half of the diameter. Since the diameter is 15 units, the radius of the given circle will be half of 15 which is r = 7.5 units.
Circumference of the circle = C = 2πr
Using the value of radius(r), we can write the circumference as:
C = 2π(7.5) = 15π
 
        
             
        
        
        
Answer:
216 min
3 hours and 36 min or 3.6 hours
Step-by-step explanation:
1/9+1/6
6+9/54
15/54
5/18
18/5
60*18/5
1080/5
/= fraction sign
3.6 hours
Step-by-step explanation:
Blake can do work in hours = 9
Blake can do a part of work in 1 hour = 1/9
Ned can paint the same room in six hours.
Ned can do a part of work in 1 hour = 1/6
They can do a part of work together in 1 hour =  1/9+1/6
                                                                           = 5/18  
Now they can do 5/18}  part of work in hour = 1
So, they can do whole work in hours =  1/5/18
                                                             =  3.6
Hence it will take 3.6 hours to paint the room if they work together.