The answer is the second choice.
(4,4) is a solution to both line A and B
6)x-7+10 7)3+x+1 8)8x-16 9)x/2-9
Answer:
The three angles form a "linear triplet" , so their measures must add up to 
Step-by-step explanation:
Notice that the three angles add up to cover half a circle (therefore 180 degrees of angle. Such type of angle combination is called a "linear triplet" since they add up to give a straight line.