Answer:
4.13
Step-by-step explanation:
To find out how many kilometres they ran in all you have to do 1.43+2.7 =4.13
 
        
                    
             
        
        
        
Answer
17 m^3 
Explanation 
Volume of a given prism = bh
Where b = base area and h = height of prism
Base area = 1 • 2/2 (b • h /2)
= 1 
Height = 17 
17 • 1 = 17 m^3
        
             
        
        
        
Answer:
Step-by-step explanation:
(2,1), (-2,-1)
slope(m) = (-1-1) / (-2 - 2) = -2/-4 = 1/2
parallel lines will have the same slope
y = mx + b
slope(m) = 1/2
(-4,8)...x = -4 and y = 8
now sub and find b, the y int
8 = 1/2(-4) + b
8 = -2 + b
8 + 2 = b
10 = b
so ur equation is : y = 1/2x + 10 <==
 
        
                    
             
        
        
        
10% of 18 tonnes = 1.8 tonnes 
30% of 18 tonnes = 5.4 tonnes 
18 - 5.4 tonnes = 12.6 tonnes