1
a= 6/12 or one half.
b= 1/2 , one half.
step by step:
multiply the top numbers by eachothers
do the same with the bottom.
        
             
        
        
        
Answer:
a. m<B = 100°
b. m<L = 55°
c. Scale factor = 9/11
Step-by-step explanation:
a) Similar triangles have their three corresponding angles congruent to each other, while the ratio of their corresponding sides are proportional to each other.
Since ∆ABC ~ ∆GLJ, therefore,
<A = <G,
<B = <J
<C = <L
m<J = 100° (given)
Therefore,
m<B = m<J = 100°
m<B = 100°
b) m<A = m<G
m<A = 25° (given)
Therefore,
m<A = m<G = 25°
m<G = 25°
m<L = 180° - (m<J + m<G)
Substitute
m<L = 180° - (100° + 25°)
m<L = 55°
c) scale factor of smaller triangle to the larger = side length of smaller triangle / corresponding side length of bigger triangle 
Scale factor = AB/GJ
Substitute
Scale factor = 18/22
Simplify 
Scale factor = 9/11
 
        
             
        
        
        
8x51. 8x50=? 8x5=40. 40 x 10 = 400 8x50=400. 8x1=8 400+8=408.
        
             
        
        
        
1/10 of 3,000 is 300. Just divide by 10 to get the answer
 
        
             
        
        
        
 Answer:
10
Step-by-step explanation:
The ratio of abc/def=1.5
15/1.5=10
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