The Sugar Sweet Company is going to transport its sugar to market. It will cost $7500 to rent trucks plus $125 for each ton of sugar transported. The total cost, C (in dollars), for transporting n tons is given by the following function.

C(n)=7500+125n

If the total cost is $10,125, how many tons is the company transporting?

What is the total cost of transporting 13 tons?