Answer:
3, 50 and 70
Step-by-step explanation:
Using exterior angle property, we have 15x+5+22x+4=120, 37x+9=120. x=3
B=15x+5=50
C=22x+4=70
Answer:d
got it
the variance is 6.6
sry for not showing work
D
6% of 40 is 2.4, 40.00+ 2.40=42.40