I’m pretty sure it’s
48m^5 + 6
Please correct me if I’m wrong
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%).
The solution to the problem is as follows:
<span>Write the decimal number as a fraction
(over 1)
0.336 = 0.336 / 1
Multiplying by 1 to eliminate 3 decimal places
we multiply top and bottom by 3 10's
Numerator (N)
N = 0.336 × 10 × 10 × 10 = 336
Denominator (D)
D = 1 × 10 × 10 × 10 = 1000
N / D = 336 / 1000
Simplifying our fraction
= 336/1000
= 42/125</span>
The answer to the question