$3\mathrm{.}17$ Consider the employee database of Figure $3\mathrm{.}19.$ Give an expression in SQL for each of the following queries.

a$.$ Give all employees of "First Bank Corporation" a $10$ percent raise.

b$.$ Give all managers of "First Bank Corporation" a $10$ percent raise.

C$.$ Delete all tuples in the works relation for employees of "Small Bank Cor$-$ poration".