Answer:
It's a negative 4 and the variable n and can be used for anything or any equation.
Answer :D
2530
Question explanation:

<em>I'm truly sorry if this is incorrect - Answered by Lilo</em>
-7
I might not be right but that’s what I got.
Answer:
4.50
Step-by-step explanation:
First add 50 and 40 to get 90. Then multiply that by 0.05 to get 4.5.
39
Divide 78 by 2 to get 39 and add in to the number