Final answer:
The freight company would charge a total of $240 to transport goods for 40 miles, by adding the flat rate of $80 to the cost of $4 per mile multiplied by the number of miles.
Step-by-step explanation:
To calculate the total charge for transporting goods 40 miles by a freight company with a flat rate and a per mile charge, we use the following formula: Total Charge = Flat Rate + (Per Mile Charge x Number of Miles).
The company charges an flat rate of $80, plus $4 per mile. So for a trip of 40 miles, the calculation is as follows:
Total Charge = $80 + ($4/mile x 40 miles)
Total Charge = $80 + $160
Total Charge = $240
Hence, the freight company would charge $240 to transport the goods 40 miles.