Answer:
$100 million
Explanation:
Increase in the total value of checkable deposit is determined by the money multiplier
Reserves = required reserves + excess reserves
Required reserves is the percentage of deposits required of banks to keep as reserves by the central bank
Excess reserves is the difference between reserves and required reserves
Money multiplier = amount deposited / reserve requirement
$30 million / 0.2 + 0.1 = $100 million