Answer:
x= 16
Step-by-step explanation:
x=20
The three angles added up will be 180 degrees in total.
3x+80+2x=180
5x+80=180
5x=100
IQR is 4, median is 58.
Enter these values in a list, hit stat > calc > 1-var stats. That gives you the 5 number summary. To get IQR, subtract Q3 from Q1.