casey purchased a 4-unit apartment building. From the rent he collects each month,casey pays out $600 for expenses. How much rent must he charge for each of the 4 apartments if he wants to make $500 profit each month? The amount of rent is the same for each of the apartments.
do I times $600 *4 = 2,400 or do I just add 600 +500 and that would make it $11,000 a month is what he would need to charge?