<human>:  Mr. Caiden wants to do repairs to his house and requires 300 feet of metal roofing to do this. If each foot of roofing costs $8, and the supplier of the metal roofing brings in 250 feet of metal roofing for free, how much money is Mr. Caiden required to pay for the remaining metal roofing?
<bot>: How many feet of metal roofing did the supplier bring in? ** The supplier brought 300 ft - 250 ft = <<300-250=50>>50 fewer feet of metal roofing.
How much money does Mr. Caiden have to pay for the remaining metal roofings? ** Therefore the total amount of money Mr. Caiden has to pay for the remaining metal roofings is 50 feet * $8/foot = $<<50*8=400>>400
#### 400