Sorry I just now saw it was college
Answer: 137 adult tickets were sold
Step-by-step explanation: Total - 548
Adult - x; Student 3x. Make a equation:
3x+x=548
4x=548
x=548/4
x= 137 - adult
137*3= 411 student
I don't know what the first two blanks are asking for, but the last one should be Alternate Exterior Angles Property of Congruence (AEAPC).
Answer:
What do you need help with?