I think it’s A, sorry of I’m wrong
Answer:

Step-by-step explanation:

24 nitrate I’m pretty sure but not so sure but I’m pretty sure but not so sure
Answer:
5
Step-by-step explanation:
f(-1)=2(-1)+7
f(-1)=-2+7
f(-1)=5
-2 because I’m just going to guess because I can’t see the system of equations