Answer and Explanation:
(a) Reserve requirement
10%[ RR of $10,000 is 10% of DD of $100,000]
(b)
i All ER [of $5,000] would disappear and they would have only the RR of $10,000.
iiThe M1 MS would not change and the MS
will includes currency and DD of the public.
The $5,000 Luis withdrew [currency] is still M1.
iii When Luis withdrew $5,000, that simply means that RR was now $9,500.
Hence RR will be decrease by $500 and the remainder of the $5,000 withdrawal was taken from excess leaving only 500 currently in ER.
C.They can borrow from another bank which is either from Fed Funds Rate or from the Fed Discount Rate.