7+6. is one of them hope this helps
Answer:
4.6
Step-by-step explanation:
The net change is found by subtracting the starting number from the change. 2.2 minus -2.4 is 4.6. If this is wrong I apologise.
Answer:

Step-by-step explanation:
let take the number as X

Y=kx
insert the point, x=4, y=-80 and solve for k
-80=4*k
-20=k