Sales salaries and commissions are $17,000 when 135,000 units are sold; and $13,000 when - 12 85,000 units are sold. Using the high-low method, what is the variable portion of sales salaries and ?commission Nothing mentioned ( ) per unit 0.06 $ O per unit 0.1$ o per unit 0.075 $ O per unit 0.08 $ per unit 0.12 $ 0 per unit 0.05 $ O Sales salaries and commissions are $17,000 when 135,000 units are sold; and $13,000 when -13 85,000 units are sold. Using the high-low method, what is the fixed portion of sales salaries and ?commission 6200 6650 O 5800 O 6640 0 6600 66250 ->) Nothing mentioned