The graph shows a point of equilibrium.
A graph titled Daily Market for Graphic Tees at the Clothing Shop has Quantity supplied on the x-axis, from 0 to 30 in increments of 5, and price in dollars on the y-axis, from 0 to 30 in increments of 5. A line that represents supply has a positive slope and a line that represents demand has a negative slope. The lines intersect at (15, 20).
How many goods must be supplied to achieve equilibrium?
15
20
25
30