Answer:
c. Q*p - F/[(p-v)/p].
Explanation:
The safety margin represent the difference between the current level of sales and the break even point.
The current sales will be Q x p
While break even is as follow:
[tex]\frac{Fixed\:Cost}{Contribution \:Margin \:Ratio} = Break\: Even\: Point_{dollars}[/tex]
Where:
[tex]Sales \: Revenue - Variable \: Cost = Contribution \: Margin[/tex]
[tex]\frac{Contribution \: Margin}{Sales \: Revenue} = Contribution \: Margin \: Ratio[/tex]
Thus will be:
[tex]\frac{Fixed\:Cost}{\frac{Sales \: Revenue - Variable \: Cost}{Sales \: Revenue}} = Break\: Even\: Point_{dollars}[/tex]
Making fit the third formula proposition for the second term.