Russell Preston delivers parts for several local auto parts stores. He charges clients $1.30 per mile driven Russell has determined that if he drives 3.500 miles in a month, his average operating cost is $0.85 per mile. If he drives 4,500 miles in a month, his average operating cost is $0.75 per mile. Russell has used the high-low method to determine that his monthly cost equation is total cost = $1,260 + $0.40 per mile. Required: 1. Determine how many miles Russell needs to drive to break even 2. Assume Russell drove 1,800 miles last month Without making any additional calculations, determine whether he earned a profit or a loss last month 3. Determine how many miles Russell must drive to earn $2.340 in profit. 4-8. Prepare a contribution margin Income statement assuming Russell drove 1.800 miles last month. 4-6. Use the information provided in Req 4a to calculate Russell's degree of operating leverage. Complete this question by entering your answers in the tabs below. Reg 1 Reg 2 Reg 3 Reg 4A Reg 4B Determine how many miles Russell needs to drive to break even. Break Even Miles Mies Reg 2 >