1) If the required reserve ratio is 10 percent, currency in circulation is $400 billion, checkable deposits are $800 billion, and excess reserves total $0.8 billion, then the monetary base is

A) $480 billion.

B) $480.8 billion.

C) $80 billion.

D) $80.8 billion.

2) If the required reserve ratio is 15 percent, currency in circulation is $400 billion, checkable deposits are $800 billion, and excess reserves total $0.8 billion, then the M1 money multiplier is

A) 2.5.

B) 1.67.

C) 2.3.

D) 0.651.

3) If the required reserve ratio is 5 percent, currency in circulation is $400 billion, checkable deposits are $800 billion, and excess reserves total $0.8 billion, then the M1 money multiplier is

A) 2.5.

B) 2.72.

C) 2.3.

D) 0.551.

4) If the required reserve ratio is 10 percent, currency in circulation is $400 billion, checkable deposits are $1000 billion, and excess reserves total $1 billion, then the money supply is ________ billion.

A) $10,000

B) $4000

C) $1400

D) $10,400