Bradley and Louie are roommates at college. At the beginning of the semester,
they each paid a security deposit of A dollars. When they move out, their
landlord will deduct from this deposit any expenses (B) for excessive wear and
tear and refund the remaining amount. Bradley and Louie will share the expenses
equally.
a. Write an expression that describes the amount each roommate will receive from
the landlord when the lease expires.