I’m assuming the answer is HL since they only gave us two letters.
        
             
        
        
        
Answer:
Please check the explanation.
Step-by-step explanation:
We know the equation
y = kx
k = y/x
where k is the proportionality constant 
so,
First ratio can be calculated as
Miles = 45 
Hours = 3/4
The ratio = 45 / (3/4)
                 = (45 × 4) / 3
                 = 180/3
                 = 60
Thus, the proportionality constant = 60
Thus, the remaining ratios can be calculated as:
The Pair (135, Hours)
135/Hours = 60
Hours = 135 / 60
            = 27/12
            = 9/4
            = 2.25
Thus, the pair is (135, 2.25)
The Pair (Miles, 3)
Miles/3 = 60
Miles = 60×3 
          = 180 
The Pair (90, Hours)
90/Hours = 60
Hours = 90 / 60
           = 3/2
           = 1.5
Thus, the complete table:
Miles           45           135           180             90
Hours           3/4          9/4           3                 3/2
Verification:
Miles / Hour =  45/(3/4) = 60
Miles / Hour = 135 / 2.25 =  60
Miles / Hour = 180 / 3 = 60
Miles / Hour  = 90 / 1.5 =  60      
 
        
             
        
        
        
The second step is wrong. What should've been done is to find greatest common factor (gcf) of 1/6 and -2. This is because you cannont add together a number with a variable to a number without a variable. So get the variable by itself by subtracting 1/6 from both sides.
1/5x + 1/6 = -2
___— 1/6_— 1/6
____________
Turn -2 into a fraction and find the gcf of -2 and 6:
1/5x + 1/6 = -2
___— 1/6_— 1/6
____________
1/5x = -2/1 — 1/6 ——> 1/5x = -12/6 — 1/6 
1/5x = -13/6
Then divide each side by 1/5 to get the variable by itself; remeber: when dividing a fraction by a fraction, you multiply by the reciprocal.
5/1 • 1/5x = -13/6 • 5/1
x = 65/6 
Then, simplify
65/6} 10.83 or 10 83/100
        
             
        
        
        
Answer:
1120 
Step-by-step explanation: All you have to do is multiply 4x4x5x14 equals 1120 
 
        
             
        
        
        
Answer:
5. (2,-6)
6.no solution
7.(1,4)
8.(8,-2)
9.(-1,5)
10. 
11.(-2,-9)
12.(-2,0)
Step-by-step explanation: