Answer:
i think c which is 14
Step-by-step explanation:
2 × ( 3x + 6 )° + ( 16x + 14 )° = 180°
22x + 26 = 180
22x = 154
x = 7
20.21 multiplied by 999.801 is 20,205.97821, so the correct answer would be A. about 20,000