Scott Mason purchased a 4 unit apartment building as an investment before he retired. From the rent he collects each month, Scott pays out $800 for expenses. How much rent must he charge (in dollars) for each of the 4 apartments if he wants to make $600 profit each month? The amount of rent is the same for each of the apartments.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.