Okay please take another picture of it and repost it.
#3 the answer is 4.
The reasoning for this is because x=-1 so if it is applied where x is at you have to subtract instead of multiplying in this equation. So 2xsquared is 2-1 which is 1. Same thing for 6x (6-1) which is 5. So the problem would end up being 1-5 which equals 4.
The answer is 266 but estimated is 260
(2,1) is the solution because its where they both intersect..
Answer:

Step-by-step explanation:
Please see attached picture for full solution.