Concert tickets cost $30,$40 or $ 50 .if you buy a ticket online you pay an extra $ 3 as a booking fee .what percentage of each ticket price is the booking fee ?

B, 118°

Step-by-step explanation:

The sum of angles on a straight line is 180° (because the measure of a straight line is 180°)

Thus:

m∠RSU + m∠UST = 180°

Substitute m∠UST with 62°.

m∠RSU + 62° = 180°

Subtract both sides by 62°.

m∠RSU = 118°

So, the answer is B, 118°

I hope this helps! Feel free to ask any questions!