Maintenance expenses of your car depend on the number of KM you drive. If following are the maintenance cost you incurred for the last six months, which varies because of KM you drove every month were different.

You know how to calculate the fixed and variable portion of your maintenance cost using high-low.

Month	Millage in KM (K)	Cost $
July	625	800
Aug	450	750
Sept	700	825
Oct	550	765
Nov	775	900
Dec	850	950

Required:

Calculate the variable maintenance cost per KM and total fixed cost per month for the Truck