Answer- $650
Reason- Marginal cost is the cost of production one additional unit in a series of production.
In present case renovation of appartment without crown molding is $7230. Whereas just by choosing to install crown molding the expense becomes $7880. So the cost of this choice is 7880 - 7230 = 650, which is the marginal cost of this choice.
iane is remodeling an apartment that she will rent out to a college student. The renovation...