Answer:
40 terabytes = 40 × 10^12 × 8 bits.
So, if using the dedicated link, it will take 400 × 1012 × 8 / (10 ×109 ) = 320000 seconds = 3.7 days.
But with FedEx overnight delivery, you can guarantee the data arrives in one day, and it only costs you no more than $100.
Explanation: