AFB systems is considering a new marketing campaignthat will require the addition of a new computerprogrammer and a new software. The programmer willoccupy an office in AFB's current building and will be paid$8000$ per month. The software license costs $1000$ permonth. The rent of the building is $4000$ per month. AFB'scomputer system is always on$,$ so running the newsoftwae will not change the current monthly electric bill of$900.$ The incremental expenses for the new marketingcampaign are