Question 9 - 2marks each In a banking system, the balance in each account is recorded by a partial function balance: Acct No + Z where integers are used to record sums of money. If acno : AcctNo is in the domain of balance, say what the type is of each of the following terms. 1. acno 5000 2. balance acno 3. dom balance 4. ran balance Question 9 - 2marks each In a banking system, the balance in each account is recorded by a partial function balance: Acct No + Z where integers are used to record sums of money. If acno : AcctNo is in the domain of balance, say what the type is of each of the following terms. 1. acno 5000 2. balance acno 3. dom balance 4. ran balance