Answer:
The cost per worker goes in five years from $67.81 at 1997, to $394.14 in 2001. It is an increase of $326.33 (481%).

Step-by-step explanation:
The annual cost per worker is modeled by the function:

where x = years from 1997.
We have to calculate the cost per worker from 1997 to 2001, according to the function f(x).
We have:

The cost per worker goes in five years from $67.81 at 1997, to $394.14 in 2001. It is an increase of $326.33 (481%).
Answer:
-100
Step-by-step explanation:
4(-25)=-100
1. .55555556
2. -.375
3. -.27272727
4. .23333333
5. .41666667
6. -.6666667
7. -.5909090
8. .83333333
Mr.Jackson is incorrect because 0.75 is per pound it's not whats added onto 8 pounds