When a bank keeps $12 from a $100 deposit as legal reserves, it is using
a. the federal reserve system.
c. a legal reserve system.
b. a fractional reserve system.
d. a fractional deposit system.

The correct answer for the question that is being presented above is this one: "b. a fractional reserve system." When a bank keeps $12 from a $100 deposit as legal reserves, it is using a fractional reserve system. It is the practice whereby a bank accepts deposits, makes loans or investments, and holds reserves that are a fraction of its deposit liabilities

To solve their problems, mesopotamians used irrigation, a way of supplying water to an area of land. to irrigate their land, they dug out large storafe basins to hold water supplies these ditches brought water to the feilds. to protect their feilds from flooding, farmers built up the banks of the tigris and euphrates.hope ths !