Answer:
49.4 km 
Step-by-step explanation:
you add 27.54 plus 21.86 so 49.4 km total between school and to your friends house 
 
        
             
        
        
        
(3,24)(7,56)
slope = (56 - 24) / (7 - 3) = 32/4 = 8
y = mx + b
slope(m) = 8
(3,24)...x = 3 and y = 24
now we sub
24 = 8(3) + b
24 = 24 + b
24 - 24 = b
0 = b
so ur equation is : y = 8x + 0...or just y = 8x
to find ur answer, take ur answer choices and sub them into y = 8x and whichever one is true is ur answer.
        
                    
             
        
        
        
Answer:
A ≈ 43.3 cm²
Step-by-step explanation:
the area (A) of an equilateral triangle is calculated as
A =  ( s is a side of the triangle )
 ( s is a side of the triangle )
given perimeter = 30 cm , then
s = 30 cm ÷ 3 = 10 cm
then
A =  =
 =  = 25
 = 25 ≈ 43.3 cm² ( to the nearest tenth )
 ≈ 43.3 cm² ( to the nearest tenth )
 
        
             
        
        
        
Answer:
15 
Step-by-step explanation:
100 laps
100 divided by 20 Is 5 
3 x 5 is 15
please brainliest me