Answer:
(a) or (b) but i think its (b)
Step-by-step explanation:
The answer is an expression because you can not solve for x.
Answer: (1,4)
Step-by-step explanation:
Given
Equation of line is 
(-1,1) is the solution of the equation
Take x=1 and substitute it in the above equation

So, another pair of the solution is (1,4)
First you distribute making it 4y-24=0
second you isolate the variable making it 4y=24
finally you divide by four giving you the answer of y=6
ED = 68
Angle GKH = 31
ABD = 224
Angle AKB = 112