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The answer is to break down oxygen entering the respiratory system others are the functions.
Hope it helps:)
Answer:
d.the company is precisely breaking even.
Explanation:
Margin of safety is referred to current sales - Break even sales ratio to current sales as a percentage.
Basically it is quoted as follows:

Therefore, when the current sales = Break even sales then only the company will have margin of safety = 0
Thus, at 0 margin of safety the company basically is at no profit no loss situation, that is break even.
Answer: 8.23%
Explanation:
Firstly, we will calculate the cost of debt which will be:
= Yield (1-Tax rate)
= 9% × (1-0.34)
= 9% × 0.66
= 5.94%
Then, the Cmcost of preferred stock will be:
= 7/(104-9.40)
= 7/(94.6)
= 7.39%
We will also get the value of the cost of equity which will be:
= (Dividend expected common/Price common) + growth rate
= (2.50/76) + 8%
= 3.29% + 8%
= 11.29%
For Debt:
Cost after tax: 5.94
Weight = 50%
Weighted cost = 5.94 × 50% = 2.97
For Preferred stock:
Cost after tax: 7.39
Weight = 1%
Weighted cost = 7.39 × 10% = 0.74
For Common equity
Cost after tax: 11.29
Weight = 40%
Weighted cost = 11.29 × 40% = 4.52
Weighted average cost of capital = 2.97 + 0.74 + 4.52 = 8.23%