d. Calculate monthly operating income (or loss) if a $2 per unit reduction in selling price results in a volume increase

[answerhappygod]

d. Calculate monthly operating income (or
loss) if a $2 per unit reduction in selling price results in a
volume increase to 8,100 units per month. (Do not
round intermediate calculations.)
e. What questions would have to be answered
about the cost–volume–profit analysis simplifying assumptions
before adopting the price cut strategy of part d?
(Select all that apply.)
Check All That Apply
Does the increase in volume move fixed expenses into a new
relevant range?
Does the increase in volume move variable expenses into a new
relevant range?
Are variable expenses really linear?
Are fixed expenses really linear?