Well A seems like the most correct answer, the actual purpose of an afterburner is to inject fuel directly into the exhaust stream to increase thrust by as much as 50%. It’s usually used to go supersonic
        
             
        
        
        
If 7 × 2 = 14, then 14 + 14 = 28. So, 7 times 4 equals to 28. You can add 14 + 14 or multiply 7 and 4 to get your answer.
        
             
        
        
        
We have that
smaller figure
ha=8.7
ra=1.6
larger figure
hb=10.44
rb=1.92
ha/hb=8.7/10.44----> 0.83
ra/rb=1.6/1.92-------> 0.83
ratio smaller figure to the larger figure
1.6/1.92-------> divided by 1.6 both members[1.6/1.6]/[1.92/1.6]-------> 1/1.2
the ratio ha/hb is equal to the ratio ra/rb
so
the smaller figure and the larger figure are similar
and 
the ratio smaller figure to the larger figure is equal to---->  1/1.2
the answer is
the option yes 1/1.2
        
             
        
        
        
Answer:
Answer is A. 30 degree
as we know that two prependicular lines have 90 degree angle between them
and similarly a horizontal line has angle zero degree.
the angle of pic shown is approximately 30 degree as it lies between prependicular and horizontal nature of lines
but as we can see that it is close to horizontal nature of the line that's why its approximate angle is 30 degree.
 
        
             
        
        
        
A) no, you can’t have duplicate x values. 
B) yes it is negative linear