Final answer:
The cost of one computer is found by subtracting the shipping fee from the total budget and dividing by the number of computers. The calculated price is $400, making option b) the correct choice.
Step-by-step explanation:
The price of one computer, denoted as 'c', is obtained by subtracting the flat shipping fee from the total budget and then dividing it by the number of computers. First, we remove the shipping fee from the total cost:
$5000 - $200 = $4800
Now, we divide this amount by the number of computers to find 'c':
$4800 / 12 = $400
Therefore, the price of one computer is $400, which corresponds to option b).