Find the measure of the angle, PLEASE I NEED HELP- I have a test review today, please can someone help me and show explanation.

D.120°

because 29x + 4 and 30x are 2 opposing angles

=> 29x + 4 = 30x

⇔ 4 = 30x - 29x

⇔x = 4

with x = 4,  the measure of the angle is 4.30 = 120

Step-by-step explanation:

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