Answer:
what grade really quick
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: -4/15
Step-by-step explanation: To add these two fractions together,
we start by finding their <em>Least Common Denominator</em> (LCD).
Since our denominators of 5 and 3 have no factors in common,
our least common denominator is 5 · 3 or 15.
In order to get a denominator of 15 in each fraction, 
we multiply top and bottom of the first fraction by 3 
and top and bottom of the second fraction by 5.
That gives us -9/15 + 5/15 which simplifies to -4/15.
As your last step, make sure that the fraction 
that you end up with doesn't reduce.
In this case, -4/15 does not reduce but watch out for this last step.
 
        
             
        
        
        
First of all why is there 2 similar equation connected to one another?
Second in order to solve this all you need to do is plug in the number and solve for x 
For 485 
85x+60=485
85x=420
X=5 
Do the same thing and you get 3
        
                    
             
        
        
        
Answer:
 54
Step-by-step explanation:
A tangent line makes a right angle with the radius to the point of tangency. Hence this triangle is a right triangle, and x° is the complement of 36°:
 x° = 90° -36° = 54°
The value of x is 54.