Answer:
Length: 10 units.
Width:6 units
Step-by-step explanation:
Part a has 1 unit =40 yards. When we have 1 unit = 20 yards, we have divided the original numbers, 40, in half, getting 20. That means that we need to double the original amount of units, like you see above.
 
        
                    
             
        
        
        
Answer:
D. it is the point where the three angle bisectors of the triangle intersect.
Step-by-step explanation:
Because in geometry the incenter of a triangle is deliberated as the center of a triangle.
 
        
             
        
        
        
18a+15
making a subject of formular 
a=18-15
 =3
 
        
             
        
        
        
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❖ To find the mean, add up all the numbers and divide by the amount of numbers there are. To find the range, subtract the highest number by the  lowest number in the data set.
2. Mean = 35  Range = 78
3. Mean = 43  Range = 58
4. Mean = 63  Range = 73
5. Mean = 61   Range = 56
6. Mean = 55  Range = 83
7. Mean = 61   Range = 53
8. Mean = 60  Range = 75
9. Mean = 50  Range = 76
10. Mean = 50  Range = 81
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