Answer:
B
Explanation:
If f and g were parallel lines , then
2x and 7x - 27 are same- side interior angles and sum to 180°
sum the 2 angles , equate to 180 and solve for x
2x + 7x - 27 = 180 ( collect like terms on left side )
9x - 27 = 180 ( add 27 to both sides )
9x = 207 ( divide both sides by 9 )
x = 23
Then
For f and g to be parallel , then x = 23