XMobile Company sells car batteries to service stations for an average of $85 each. The variable cost of each battery is $48 and monthly fixed selling costs total $6,000. Other monthly fixed costs of the company total $7,000.

Required:

a. What is the breakeven point in batteries?

b. What is the margin of safety, assuming sales total $32,000?

c. What is the breakeven level in batteries, assuming variable costs increase by 20%?

d. What is the breakeven level in batteries, assuming the selling price goes up by 10%, fixed selling costs decline by 10%, and other fixed costs decline by $1,000?