The answer would be 15 but i am not sure what the problem says her answer is. if it is not 15 then her answer is wrong
Answer:
The last answer; 12.
Step-by-step explanation:
In order to solve this, use substitution. Since it gives you an equation for y, substitute that equation in the other formula as y. This will give you:
Then simplify:
Since 6x - 6x cancels out, you are left with 12.

Answer:
The answer is B. 298? im not sure if it was supposed to be ≈ or not
Answer:
-2.35
Step-by-step explanation: