Month Miles Fuel cost Operating Costs a 254,000 $2.53 fgal $224,400.00 930,100 $2.10 Jgal $541,700.00 (a) Develop a cost-estimating equation for total monthly operating costs using March and April data points. Please round the fixed cost to the nearest dollar, and the unit variable cost to the nearest cent. Fined cost Unit variable cost (b) Develop a cost-estimating equation fortotal monthly operating costs usingJune andJuly data points. Please round the fixed cost to the nearest dollar, and the unit variable cost to the nearest cent. Fixed cost Unit variable cost (c) Assume that the only variable cost in operations of Choi express delivery is fuel cost. Estimate the range of fuel efficiency from the two cost equations you have estimated. Assume fuel cost of $2.001r gal forall months, you can estimate the fuel efficiency in mpg from the mileage cost in 5. Fuel efciency in mpg = (Per gallon fuel cost in 5) f(Per mileage fleet cost in S) |:|mns ~ |:|mps (d) Monthly fixed operating cost of Choi express delivery's hub is $1 50,000. Re-estimate the cost equations for total monthly operating costs using March-April data, andJune-July data, respectively. What would be the possible reason for the error in estimation of fixed cost using two-month data