Can you put a picture of the question so that i can help you out
Undefined terms; assumptions (postulates); definitions; theorems
Answer:
-3mn
Step-by-step explanation:
It seems you might be missing some of the question, as you haven't given what m and n are equal to.
If the question has just given you x, then you would simply just simplify it to get -3mn.
Just multiply the given x values by the function rule, that’s how you get ur y
Answer:
4x + 10
Step-by-step explanation: