Which lines are parallel? Justify your answer. A. Lines a and b are pa because their corresponding angles are congruent.

B. Lines a and b are parallel because their same side exterior angles are congruent.

C. Lines e and f are parallel because their corresponding angles are congruent.

D. Lines e and f are parallel because their same side exterior angles are supplementary.

A. Lines a and b are pa because their corresponding angles are congruent.

Step-by-step explanation:

The corresponding angles are both 110 degrees.

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540