A triangle is 180°; therefore:
x = 180-52-43
x = 85
x° = 85°
312 people bought balcony seats and 396 people bought ground seats.

Thats what you would use, so now 2/10 is .2 When you divide so you move the decimal so 20%
The percent increase is 20%
Answer:
The last answer choice
Step-by-step explanation:
This transformation doesn't not keep its congruent