Answer:
![\displaystyle [-8, -10]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5B-8%2C%20-10%5D)
Step-by-step explanation:
12 = x - 2[3x + 14]
12 = x - 6x - 28
12 = −5x - 28
+ 28 + 28
____________

[Plug this back into both equations above to get the y-coordinate of −10]; 
I am joyous to assist you anytime.
Answer:
128.7
Step-by-step explanation:
81.90 ÷ 7 = 11.7
11.7 x 11 = 128.7
Answer:
15,000
Step-by-step explanation: