Please Help:

Fred currently earns $$9,000$ per month. Fred has been offered the chance to transfer for three to five years to an overseas affiliate. His employer is willing to pay Fred $$12,000$ per month if he accepts the assignment. Assume that the maximum foreign$-$earned income exclusion for next year is $$120,000.$

a$-2.$ If Fred's employer also provides him free housing abroad $($cost of $$25,000),$ how much of the $$25,000$ is excludable from Fred's income?