Answer:
what we want to tell about ?or your question is not proper type it full and proper .
I can't understand what you want to ask ?
Answer:
The contribution margin ratio can be calculated using either total amounts or per unit amounts.
Explanation:
Contribution margin ratio = 
This can even be done by 
This will calculate contribution as a percentage of Sales, with this margin ratio we get break even sales value, and not the units.
Whenever there is an increase in variable cost it decreases the contribution.
Therefore, correct statement is
The contribution margin ratio can be calculated using either total amounts or per unit amounts.
Answer:
This is what I found!
Explanation:
Bank reserves are the cash minimums that must be kept on hand by financial institutions in order to meet central bank requirements. The bank cannot lend the money but must keep it in the vault, on-site or at the central bank, in order to meet any large and unexpected demand for withdrawals.
The answer is C. You withdraw money from a bank account while using them.