1379.52 is the answer to your question
the last one because 7*3=21 14*3=42 and 21*3=63
Answer:
Step-by-step explanation:
2 × ( 3x + 6 )° + ( 16x + 14 )° = 180°
22x + 26 = 180
22x = 154
x = 7
Answer:
Step-by-step explanation:
Answer:
See below ↓
Step-by-step explanation:
19.
20.