Read the question and answer everything properly. It's Nelson text book chapter 3 page 155. I put the link of the book if u need it

https://mcv4u.files.wordpress.com/2017/07elson-mcv4u-textbook.pdf

CHAPTER 3: MAXIMIZING PROFITS ______________________________________._ A construction company has been offered a contract for $13 million to conStFUCt and Operate a trucking route for five years to transport ore from a mine site 1'0 a smelter. The smelter is located on a major highway, and the mine is 3 km into a heavily forested area off the road. Ill smelter highway in mine Construction {capital} costs are estimated as follows: 1- Repaving the highway will cost szoo Dfkm. I A new gravel road from the mine to the highway will cost $500 oooka. Operating conditions are as follows: I There will be we round trips each day, for BUD days a year, for each of the five years the mine will be open. - Operating costs on the gravel road will be $65,!h, and the speed limit will be 4D kmfh. 4' Operating costs on the highway will be $50fh. and the speed limit will be ill] kmy'h. Use calculus to determine if the company should accept the contract. Determine the average speeds of the trucks along the paved and gravel roads that produce optimum conditions {maximum profit). What is the maximum profit