Answer:
1. Money supply increase by $100,000 because federal reserve purchase bond of $100,000 from Riggie Rich.
2. Increase in additional loans = Deposits - Reserve Required Ratio
Increase in additional loans = $100,000 - $100,000*25%
Increase in additional loans = $100,000 - $25,000
Increase in additional loans = $75,000
As a result of Rich' s deposits, Manufacturers Bank will able to extend $75,000 in additional loans.
3. Increase in Deposits = Change in Reserve x 1 / RRR
Increase in Deposits = $100,000 * 1/25%
Increase in Deposits = $100,000 * 1 / 0.25
Increase in Deposits = $4,000,000
As a result of this purchase by the fed, the maximum increase in the quantity of checkable deposits that could result through out the entire banking system is $4,000,000